工资结转凭证的会计科目是在（）系统设置的。 A.工资 B.总账 C.应收 D.应付

When she was in trouble, I did what I could to help her．__________ my help, she wrote me a letter of thanks．

A．In honor of

B．In case of

C．In terms of

D．In return for

______ Lisa ______ Lucy may go with you because one of them must stay at home to take care of the dog.[ ]

A. Not only; but also

B. Neither; nor

C. Both; and

D. Either; or

按土地开发程度，土地价格可分为（）。

A拍卖出让价格

B招标出让价格

C协议出让价格

D生地价格

E熟地价格

下列（）现象说明光是横波。

A.光的干涉现象

B.光的衍射现象

C.光的色散现象

D.光的偏振现象

双波纹差压计长期运行后应如何清洗？