任期经济责任审计分为（）。
A.任前稽核审计
B.任期稽核审计
C.离任稽核审计
D.效能稽核审计
参考答案：B, C
The survey shows that ______ we are enjoying less and less good sleep, rates of heart diseases have risen rapidly．
A．while
B．although
C．if only
D．as though
设计混凝土强度为C30，经计算水灰比为0.46，用水量为190kg，其水泥用量为（）kg。
A．443
B．423
C．453
D．413
