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问题 单项选择题

国标GB/T8189-1987规定发电船船主机在试验2次下平均有限压力≤300kMp时CO排放限值为（）g/kw·h。

A.34

B.50

C.60

D.70

答案

参考答案：B

补全对话，情景问答

补全对话。
A: 1_____?
B: I'm watching TV.
A: TV show is boring. 2 _____.
B: That sounds great. 3 _____?
A: Yes, I do. I have a new soccer.
B: 4 _____?
A: It's sunny outside. It's good for sports.
B: 5 _____?
A: At the door of the park, OK?
B: Great. See you.

A. Where are we going to meet      
B: What are you doing, Tom
C. What's the weather like outside  
D. Do you have a soccer ball
E. Let's go and play soccer ball      
F. Are you watching TV
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单项选择题

创新的规则可以简要概括为（）。

A.运气和灵感

B.专注工作和适当的休息

C.模仿和学习

D.创造全新的东西
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