位于给水泵和锅炉省煤器之间的加热器为（）。A.低压加热器 B.除_爱下问搜题

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问题单项选择题

位于给水泵和锅炉省煤器之间的加热器为（）。

A.低压加热器

B.除氧器

C.高压加热器

D.汽封加热器

答案

参考答案：C

选择题

Where _____ your father from?[ ]

A. are

B. is

C. am

D. be

补全对话，情景问答

A. Well, first peel three apples.
B. Then pour the milk in the blender.
C. Finally, pour the milk shake in a glass and drink it.
D. Let's make an apple milk shake.
E. Then cut up the apples.

A: I am hungry! (1)_____
B: How do you make an apple milk shake?
A: (2)_____
B: Three apples?
A: Yes. (3)_____
B: OK, I am finished.
A: Now put the apples and ice cream in the blender. (4)_____
B: Is this enough milk?
A: I guess so. Next, turn on the blender. (5)_____