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【单选题】
Thousands of Irish people starved during the 'Potato Famine' because.
A.
they were so dependent on potatoes that they refused to eat anything else.
B.
they were forced to leave their homeland and move to America.
C.
the weather conditions in Ireland were not suitable for growing potatoes.
D.
the potato harvest was bad.
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【判断题】离合器接合时,压紧弹簧的变形量比分离时的变形量大
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正确
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错误
【单选题】现在全球通信行业,市场占有率最高的企业是( )。
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爱立信
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诺基亚
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【判断题】离合器接合时,压紧弹簧的变形量比分离时变形量大。
A.
正确
B.
错误
【多选题】运输机的张紧装置包括
A.
前溜槽
B.
弹簧
C.
丝杠张紧
D.
刮板链组件
【多选题】Which of the following statements of US Senate or Senator are true?
A.
The Senate has 100 members. Each of the 50 states elects two Senators.
B.
A senator must be over 20 years old, a resident in the state which they represent.
C.
The term for Senators is six years, but one third of them are elected every two years.
D.
A senator must have been an American citizen for at least nine years.
【多选题】第一运输机的日常检查包括()、()、()、()的松动、磨损情况,发现问题及时处理。
A.
链轮
B.
刮板
C.
溜槽
D.
链条
【单选题】运输机的组成不包括
A.
张紧装置
B.
刮板链组件
C.
前溜槽
D.
液压系统
【判断题】离合器接合时,压紧弹簧的变形量比分离时变形量大。
A.
正确
B.
错误
【多选题】运输机的溜槽包括
A.
驱动装置
B.
前溜槽
C.
后溜槽
D.
弹簧
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