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【单选题】
时间继电器是在电路中起着控制( )的继电器。A.
电压大小
B.
电流大小
C.
动作时间
D.
动作大小
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皮皮学刷刷变学霸
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【单选题】关于数量条款，按照《联合国国际货物销售合同公约》的规定，以下叙述正确的是( )。
A.
如果卖方短交，卖方不能在规定的交货期届满前补交
B.
卖方多交部分造成的所有开支均由买方负担
C.
买方可以收取多交部分的货物或多交货物当中的一部分
D.
卖方只是无意中造成的多交，买方不得以合同规定为由提出损害赔偿
【单选题】Bullies can happen in the following places EXCEPT ______.
A.
schoolyards
B.
classrooms
C.
bathrooms
D.
teachers' offices
【单选题】It can be inferred from the text that______.
A.
once customers' misfortunes happen, they can get compensation from companies
B.
once customers' misfortunes happen, they can't get compensation from companies
C.
according to current law, the information on the products was provided for the benefits of customers
D.
according to current law, the information on the products was provided as protection against legal liability
【单选题】以下哪一项不属于终极责任?
A.
父母对子女是否适应社会的责任
B.
教师对学生的学识品德所负的责任
C.
领导人对下属学习生活的责任
D.
官员对黎民百姓的生活疾苦所负的责任
【单选题】一 Do you happen to know Maria's address? ( )
A.
Not offhand , but I can look it up in my address book.
B.
Really? I thought you' d be excited about it.
C.
No , I don't , but that's a good question.
【简答题】密封件材料应具备哪些性能?哪些材料可以作为O形密封圈的制作材料?
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