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【简答题】
富兰克林对大气中的雷和闪电进行了研究,统一了( )和( )。
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举一反三
【多选题】Model test 1 A security
B.
rather than
C.
confined
D.
scattered
E.
Although
F.
restricted
G.
securities
H.
dealers
I.
potentially
J.
concentrated K sellers L Even if M definitely N however O other than A market is commonly thought of as a place where commodities are bought and sold. Thus fruit and vegetables are sold wholesale at Covent Garden Market and meat is sold wholesale at Smithfield Market. But there are markets for things ____________ (1) commodities, in the usual sense. There are real estate markets, foreign exchange markets, labor markets, short-term capital markets, and so on; there may be a market for anything that has a price. And there may be no particular place to which dealings are ____________ (2). Buyers and sellers may be ____________(3) over the whole world and instead of actually meeting together in a market-place they may deal with one another by telephone, telegram, cable or letter. ______________ (4) dealings are ___________ (5) to a particular place, the dealers may consist wholly or in part of agents acting on instructions from far away. Thus agency buy meat at Smithfield on behalf of retail butchers all over England; and brokers on the London Stock Exchange buy and sell _____________ (6) on instructions from s all over the world. We must therefore define a market as any area over which buyer and sellers are in such close touch with one another, either directly or through ____________(7), that the prices obtainable in one part of the market affect the prices paid in other parts. Modern means of communication are so rapid that a buyer can discover prices by asking, and can accept it if he wishes, although he may be thousands of miles away. Thus the market for anything is, ____________ (8), the whole world. But in fact things have, normally, only a local or national market. This may be because nearly the whole demand is __________ (9) in one locality. These special local demands, ___________ (10), are of quite minor importance. The main reason why many things have not a world market is that they are costly or difficult to transport.
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【简答题】地面上高程相等的相邻点所连成的闭合曲线称____。
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【判断题】地面上高程相等的相邻点所连成的闭合曲线，称为等高距。(    )
A.
正确
B.
错误
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【判断题】地面上高程相同的各相邻点所连成的闭合曲线称为等高线。相邻等高线之间的水平距离称为等高距。()
A.
正确
B.
错误
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【单选题】R1的路由表有3条记录,分别是:(net1,3,R2),(net2,1,-),(net6,3,R3),R2的路由表包括2条记录:(net1,4,-),(net5,2,R3),当R2和R1交换路由信息后,下列是R1中的路由记录的是:
A.
(net1,3,R2)
B.
(net4,3,R1)
C.
(net5,3,R2)
D.
(net6,3,R2)
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【判断题】地面上高程相等的相邻点所连成的闭合曲线，称为等高距。
A.
正确
B.
错误
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【单选题】地面上高程相等的相邻点所连接成的闭合光滑曲线，称为（）。
A.
等高线
B.
首曲线
C.
计曲线
D.
间曲线
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【简答题】地面上高程相等的相邻点所连成的闭合曲线称为( )
查看完整题目与答案
【判断题】If A and B are m* n, then both AB^T and A^TB are defined.
A.
正确
B.
错误
查看完整题目与答案
【单选题】Model test 1 A security
B.
rather than
C.
confined
D.
scattered
E.
Although
F.
restricted
G.
securities
H.
dealers
I.
potentially
J.
concentrated K sellers L Even if M definitely N however O other than A market is commonly thought of as a place where commodities are bought and sold. Thus fruit and vegetables are sold wholesale at Covent Garden Market and meat is sold wholesale at Smithfield Market. But there are markets for things ____________ (1) commodities, in the usual sense. There are real estate markets, foreign exchange markets, labor markets, short-term capital markets, and so on; there may be a market for anything that has a price. And there may be no particular place to which dealings are ____________ (2). Buyers and sellers may be ____________(3) over the whole world and instead of actually meeting together in a market-place they may deal with one another by telephone, telegram, cable or letter. ______________ (4) dealings are ___________ (5) to a particular place, the dealers may consist wholly or in part of agents acting on instructions from far away. Thus agency buy meat at Smithfield on behalf of retail butchers all over England; and brokers on the London Stock Exchange buy and sell _____________ (6) on instructions from s all over the world. We must therefore define a market as any area over which buyer and sellers are in such close touch with one another, either directly or through ____________ ( 7), that the prices obtainable in one part of the market affect the prices paid in other parts. Modern means of communication are so rapid that a buyer can discover prices by asking, and can accept it if he wishes, although he may be thousands of miles away. Thus the market for anything is, ____________ (8), the whole world. But in fact things have, normally, only a local or national market. This may be because nearly the whole demand is __________ (9) in one locality. These special local demands, ___________ (10), are of quite minor importance. The main reason why many things have not a world market is that they are costly or difficult to transport.
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相关题目：
【多选题】Model test 1 A security
B.
rather than
C.
confined
D.
scattered
E.
Although
F.
restricted
G.
securities
H.
dealers
I.
potentially
J.
concentrated K sellers L Even if M definitely N however O other than A market is commonly thought of as a place where commodities are bought and sold. Thus fruit and vegetables are sold wholesale at Covent Garden Market and meat is sold wholesale at Smithfield Market. But there are markets for things ____________ (1) commodities, in the usual sense. There are real estate markets, foreign exchange markets, labor markets, short-term capital markets, and so on; there may be a market for anything that has a price. And there may be no particular place to which dealings are ____________ (2). Buyers and sellers may be ____________(3) over the whole world and instead of actually meeting together in a market-place they may deal with one another by telephone, telegram, cable or letter. ______________ (4) dealings are ___________ (5) to a particular place, the dealers may consist wholly or in part of agents acting on instructions from far away. Thus agency buy meat at Smithfield on behalf of retail butchers all over England; and brokers on the London Stock Exchange buy and sell _____________ (6) on instructions from s all over the world. We must therefore define a market as any area over which buyer and sellers are in such close touch with one another, either directly or through ____________(7), that the prices obtainable in one part of the market affect the prices paid in other parts. Modern means of communication are so rapid that a buyer can discover prices by asking, and can accept it if he wishes, although he may be thousands of miles away. Thus the market for anything is, ____________ (8), the whole world. But in fact things have, normally, only a local or national market. This may be because nearly the whole demand is __________ (9) in one locality. These special local demands, ___________ (10), are of quite minor importance. The main reason why many things have not a world market is that they are costly or difficult to transport.
查看完整题目与答案
【简答题】地面上高程相等的相邻点所连成的闭合曲线称____。
查看完整题目与答案
【判断题】地面上高程相等的相邻点所连成的闭合曲线，称为等高距。(    )
A.
正确
B.
错误
查看完整题目与答案
【判断题】地面上高程相同的各相邻点所连成的闭合曲线称为等高线。相邻等高线之间的水平距离称为等高距。()
A.
正确
B.
错误
查看完整题目与答案
【单选题】R1的路由表有3条记录,分别是:(net1,3,R2),(net2,1,-),(net6,3,R3),R2的路由表包括2条记录:(net1,4,-),(net5,2,R3),当R2和R1交换路由信息后,下列是R1中的路由记录的是:
A.
(net1,3,R2)
B.
(net4,3,R1)
C.
(net5,3,R2)
D.
(net6,3,R2)
查看完整题目与答案
【判断题】地面上高程相等的相邻点所连成的闭合曲线，称为等高距。
A.
正确
B.
错误
查看完整题目与答案
【单选题】地面上高程相等的相邻点所连接成的闭合光滑曲线，称为（）。
A.
等高线
B.
首曲线
C.
计曲线
D.
间曲线
查看完整题目与答案
【简答题】地面上高程相等的相邻点所连成的闭合曲线称为( )
查看完整题目与答案
【判断题】If A and B are m* n, then both AB^T and A^TB are defined.
A.
正确
B.
错误
查看完整题目与答案
【单选题】Model test 1 A security
B.
rather than
C.
confined
D.
scattered
E.
Although
F.
restricted
G.
securities
H.
dealers
I.
potentially
J.
concentrated K sellers L Even if M definitely N however O other than A market is commonly thought of as a place where commodities are bought and sold. Thus fruit and vegetables are sold wholesale at Covent Garden Market and meat is sold wholesale at Smithfield Market. But there are markets for things ____________ (1) commodities, in the usual sense. There are real estate markets, foreign exchange markets, labor markets, short-term capital markets, and so on; there may be a market for anything that has a price. And there may be no particular place to which dealings are ____________ (2). Buyers and sellers may be ____________(3) over the whole world and instead of actually meeting together in a market-place they may deal with one another by telephone, telegram, cable or letter. ______________ (4) dealings are ___________ (5) to a particular place, the dealers may consist wholly or in part of agents acting on instructions from far away. Thus agency buy meat at Smithfield on behalf of retail butchers all over England; and brokers on the London Stock Exchange buy and sell _____________ (6) on instructions from s all over the world. We must therefore define a market as any area over which buyer and sellers are in such close touch with one another, either directly or through ____________ ( 7), that the prices obtainable in one part of the market affect the prices paid in other parts. Modern means of communication are so rapid that a buyer can discover prices by asking, and can accept it if he wishes, although he may be thousands of miles away. Thus the market for anything is, ____________ (8), the whole world. But in fact things have, normally, only a local or national market. This may be because nearly the whole demand is __________ (9) in one locality. These special local demands, ___________ (10), are of quite minor importance. The main reason why many things have not a world market is that they are costly or difficult to transport.
查看完整题目与答案