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【单选题】
设税务管理官员认为，大多数企业偷税漏税行为。在对由800个企业构成的随机样本的检查中，发现有144个企业有偷税漏税行为。根据99%的置信水平估计偷税漏税企业比例的置信区间为( )。A.
0.18±0.015
B.
0.18±0.025
C.
0.18±0.035
D.
0.18±0.045
E.
0.18±0.055
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【单选题】I suggested to my mother that she a drawing club after her retirement form teaching.
A.
join
B.
joins
C.
joined
D.
would join
【单选题】_____ brother is in the Reading Club. He is a friend of _____. [ ]
A.
She's, our
B.
Her, mine
C.
She, me
D.
His, we
【单选题】I suggested my mother that she _____ a drawing club after her retirement from teaching. [ ]
A.
join
B.
joins
C.
joined
D.
would join
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