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【单选题】
宽与长的比是 (约 0.618 )的矩形叫做黄金矩形,黄金矩形蕴藏着丰富的美学价值,给我们以协调和匀称的美感 . 我们可以用这样的方法画出黄金矩形:作正方形 ABCD ,分别取 AD , BC 的中点 E , F ,连接 EF ;以点 F 为圆心,以 FD 为半径画弧,交 BC 的延长线 G ;作 GH ⊥ AD ,交 AD 的延长线 H ,则图中下列矩形是黄金矩形的是( )
A.
矩形ABFE
B.
矩形EFCD
C.
矩形EFGH
D.
矩形DCGH
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举一反三
【单选题】They are waiting ___ a bus ___ the bus stop. [     ]
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for; in
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on; at
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with; at
D.
for; at
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【单选题】糖酵解的终产物是(    )
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H 2 O和CO 2
B.
乙酰CoA    
C.
丙酮酸    
D.
乳酸
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in
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on
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【简答题】听下面一段话,回答1-5题. 1. What does the man like about the play? A. The story. B. The ending. C. The actor. 2.Which place are the speakers trying to find? A. A hotel. B. A bank. C. A restaurant. 3. At what ti...
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【简答题】听力。 1. What dose the man like about the play? A. The story. B. The ending. C. The actor. 2. Which place are the speakers trying to find? A. A hotel. B. A bank. C. A restaurant. 3. At what time will th...
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【单选题】与脑干相连的脑神经数量是
A.
.12 对
B.
11 对
C.
10 对
D.
9 对
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【简答题】A．Meet at the bus stop. B．Finish their candy bars. C．Get off the bus at the next stop. D．Meet in front of the rest rooms.
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【判断题】根据傅里叶定律，导热分析的主要任务是求解温度场。
A.
正确
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错误
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【单选题】Here ____________ the bus stop. [     ]
A.
is
B.
are
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【判断题】根据傅里叶定律,导热分析的主要任务是求解温度场.
A.
正确
B.
错误
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【单选题】They are waiting ___ a bus ___ the bus stop. [     ]
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【简答题】A．Meet at the bus stop. B．Finish their candy bars. C．Get off the bus at the next stop. D．Meet in front of the rest rooms.
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【判断题】根据傅里叶定律，导热分析的主要任务是求解温度场。
A.
正确
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【单选题】Here ____________ the bus stop. [     ]
A.
is
B.
are
查看完整题目与答案
【判断题】根据傅里叶定律,导热分析的主要任务是求解温度场.
A.
正确
B.
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查看完整题目与答案