搜题请搜索小程序“爱下问搜题”
问题
单项选择题
链轮箱离合器（）型号轴承损坏，会造成泥浆泵不停。
A、60214
B、3516
C、3514
D、7213
答案
参考答案：
A
猜谜题，问答题
请看图回答问题。
1.
— What does Peter often do in the evening?
— ____________________________________________.
2.
— Today is Sunday. What is Amy doing now?
— ____________________________________________.
3.
— What did Peter do last Saturday afternoon?
— ____________________________________________.
4.
— Tomorrow is weekend. What are you going to do?
— ____________________________________________.
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填空题
把多项式x﹣2+3x
2
+4x
3
按x的降幂排列
．
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