问题
单项选择题
对于柴油机曲轴来讲，一般情况下连杆轴颈的磨损要比主轴颈的磨损（）
A.相同
B.严重
C.轻得多
D.较轻
答案
参考答案：B
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对于柴油机曲轴来讲，一般情况下连杆轴颈的磨损要比主轴颈的磨损（）
A.相同
B.严重
C.轻得多
D.较轻
参考答案：B
| 根据对话，选择句子。 | |
| A: Hey, Mom. Can I invite some friends to the party Sunday afternoon? B: 1 . But you have to do some chores first. A: What do I have to do? B: Well, first you could sweep the kitchen floor. A: OK． 2 B: Then you could take out the trash. A: Yeah. 3 B: And you need to clean your room. A: Wow! I’m going to be too tired to go to my own party! B: 4 I’ll go to the store for drinks and snacks. A: 5 | |
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| 1 ._____ 2._____ 3._____ 4 ._____ 5 ._____ |