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【单选题】
机械零件的设计准则有A.
温度准则
B.
强度准则
C.
耐磨性准则
D.
等寿命准则
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反馈参考答案：
举一反三
【简答题】在人类生活的方方面面
【单选题】天气与人类息息相关，对人类的活动的影响表现在①生活方面②农业生产方面③军事④交通方面⑤工业生产和工程建设方面⑥商业、旅游活动和休闲娱乐等方面 [ ]
A.
①②③
B.
①②③④
C.
②③④⑤⑥
D.
①②③④⑤⑥
【单选题】When did the woman go to the Great Wall?
A.
She went there last spring.
B.
She went there last autumn.
C.
She went there last winter.
【简答题】A．She went to Safari Park. B．She went to Oxford. C．She watched the sun rise. D．She went to Stonehenge.
【简答题】什么是印刷电路板? (PCB)
【单选题】—Did she _____ to the movies? —No, she went to the party. [ ]
A.
goes
B.
go
C.
going
D.
went
【单选题】What did the woman do last Saturday?
A.
She had a party.
B.
She went on a trip.
C.
She went to the doctor.
D.
She called the man.
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