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【单选题】
()是用来储存机油并密封上曲轴箱。A.
气缸盖
B.
活塞
C.
油底壳
D.
气门室盖
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反馈参考答案：
举一反三
【单选题】以旅游团到大连旅游,导游讲解时用“广场、绿地、白鸽”三个词概括大连的城市旅游特色,这种导游讲解方法是( )
A.
触景生情法
B.
画龙点睛法
C.
虚实结合法
D.
类比法
【单选题】听力原文：W: Excuse me, sir. I'm going to send this parcel m London. What's the postage for it? M: Let me see. It's one pound and fifty. Who is the woman most probably speaking to?
A.
A railway porter.
B.
A bus conductor.
C.
A taxi driver.
D.
A postal clerk.
【单选题】听力原文：W: Excuse me, sir. I'm going to send this parcel to Paris. What's the postage for it? M: Let me see. It's one pound and fifty. Who is the woman most probably speaking to?
A.
A railway porter.
B.
A taxi driver.
C.
A bus conductor.
D.
A postal clerk.
【简答题】金属材料在卸载过程中不产生()的塑性变形,因此应力-应变线又是线性的了,除非反向再加载至弹性极限以后。
【单选题】听力原文：W: Excuse me, sir. Is this the human resources department? M: Yes, that's right. Is there anything I can do for you? W: Yeah, I'm a TV reporter, and I'm doing a serial interview on the job market...
A.
She is a journalist.
B.
She is a broadcaster.
C.
She is a TV compere.
D.
She is a personnel manager.
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