1. [单选题]______ is accepted as wrong is not necessarily wrong.
A. It
B. That
C. What
D. That it
2. [单选题]利率与投资总量呈反方向变化的原因是( )。
A. 投资与储蓄之间的替代效应
B. 国内投资与国外投资的替代效应
C. 国际游资的冲击
D. 中央银行的干预行为
3. [单选题]一组服从正态分布的数据,平均数(average)为50.标准差为5,则Z值为一2.58的原始数据是
A. 37.10
B. 42.42
C. 47.42
D. 62.90
4. [单选题]在一个DNA分子中,若A所占的摩尔比为17.2%,则G的摩尔比应为
A. 67.2%
B. 32.8%
C. 17.2%
D. 65.6%
E. 16.4%
5. [单选题]The whole event probably lasted about hours from the moment Bieber came to the hotel to the arrival of some armed officers。
A. 6
B. 8
C. 11
D. 14