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看图填空:请填写下图楼梯构造中ABCDEF的长度分别表示含义。(请按A至F的顺序填写)
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【简答题】完成句子 1 ．As ________________( 社会发展了)day by day ,with more and more advanced technology and ever －increased social wealth ,the nowaday world is totally different from ever before.(develop) 2 ．Scientists...
【单选题】The government should be playing a more____role in promoting human rights.
A.
promising
B.
prominent
C.
prosperous
D.
proper
【判断题】While promoting your phones, I get more excited than I ever gotten promoting other things.
A.
正确
B.
错误
【简答题】当电阻匹配,即 时,外电阻可获得最大功率。
【单选题】We are sparing no efforts to create _____ more peaceful and more advanced world, ____ place where everyone enjoys his life and freedom.
A.
a; a
B.
/; the
C.
the; a
D.
the; the
【简答题】设一组数据为x 1 ，x 2 ，x 3 ，…，x n ，各数据与平均数 . x 之______的平方的平均值，叫做这组数据的方差，记做s 2 ．即s 2 = 1 n [( x 1 - . x ) 2 +( x 2 - . x ) 2 +…+( x n - . x ) 2 ] ．
【单选题】-- The city of Wenzhou looks more and more beautiful. -- Yes. That’s because lots of trees ______ every year.
A.
plant
B.
are planting
C.
are planted
D.
have planted
【简答题】设一组数据为 (1, 10, 55, 14, 68, 11, 27, 23, 29) ,散列函数是 H( key ) = key % 13 ,用链地址法解决冲突,设散列表的大小为 13(0 .. 12) ,试画出插入上述数据后的散列表。
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