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【单选题】
已知表int a[] = {2, 3, 4, 5, 6 }; 下面哪个表的值与数组下标量总数相等?A.
a.length()
B.
a.length
C.
a.length()+1
D.
a.length+1
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【多选题】控制测量中的投影带和投影面的选择,主要是解决长度变形问题,这种变形主要来自于( )。
A.
实测边长归算到工程平均高程面上的变形影响
B.
实测边长归算到高斯投影面上的变形影响
C.
实测边长归算到参考椭球面上的变形影响
D.
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E.
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【单选题】How often do you play the violin?_.
A.
Every day
B.
For half an hour
C.
Since I was 5
D.
In half an hour
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