因水击引起调节滞后作用的大小可用表示。（） A.Ta； B.Tw； C.Tn； D._爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

因水击引起调节滞后作用的大小可用表示。（）

A.Ta；

B.Tw；

C.Tn；

D.Td。

答案

参考答案：B

单项选择题

Questions 14-23

·Look at the ten statements for this part.
·You will hear a story about "Marriage Customs in Some Parts of the World".
·Decide whether you think each statement is right(R), wrong(W) or not mentioned(NM).
·Mark your answers on the Answer Sheet.

Marriage must always be something of a gamble in people’s eyes.

A．Right

B．Wrong

C．Not Mentioned

单项选择题

The exhibition is held ______our own expense and______ last year's prices. ( )

A．for, at

B．for, with

C．at, at

D．for, for