动态价格机制不包括（）。A.谈判议价 B.拍卖 C.招标 D.由你定价_爱下问搜题

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问题单项选择题

动态价格机制不包括（）。

A.谈判议价

B.拍卖

C.招标

D.由你定价

答案

参考答案：D

单项选择题

冷却水的波动分离系统首先表现出来的现象是（）。

A．热区精馏塔塔压波动

B．冷区精馏塔压波动

C．热区精馏塔顶温波动

D．冷区精馏塔顶温波动

补全对话，情景问答

Complete the best response from A to F according to the sentences given.

( )1. Mum, may I go out for a walk?
( )2. Must we finish all the homework today or tomorrow?
( )3. What about the meat on the plate?
( )4. How do you like that film?
( )5. I'm not feeling well today.

A. Of course if your work has been finished.
B. Better live in bed.
C. You needn't worry about it. You may finish it in next week.
D. It tastes nice.
E. I don't like it. It's less interesting than this one.
F. Thank you very much.