单项选择题

对于盆式橡胶支座竖向承载力试验，每次、每级径向变形应取该次、该级加载时4个径向位移传感器读数的( )。
A 算术平均值
B 标准差
C 绝对值之和的一半
D 绝对值之和

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单项选择题

The difference between the two legs are so small ______ no one is aware if it.
A、as
B、if
C、that
D、such

多项选择题

Advantages of Balanced scorecard？

A．It looks at both internal and external matters.
B．links to long-term objectives as well as short-term ones.
C．Financial and non-financial measures
D．Using an identical target return