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【单选题】
下列哪些力不属于保守力。( )
A.
重力
B.
摩擦力
C.
库仑力
D.
弹性力
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参考答案:
举一反三
【单选题】He will ______ resign in view of the complete failure of the research project.
A.
doubtfully
B.
adequately
C.
presumably
D.
reasonably
【单选题】IPSec不可以做到( )
A.
认证
B.
完整性检查
C.
加密
D.
签发证书
【单选题】下列函数组线性相关的是( )
A.
,
B.
,
C.
sinx , cosx
D.
,
【判断题】锅炉立柱底板垫铁的布置,垫铁表面应平整,必要时应加工刨平,垫铁布置间距一般为500mm,每组垫铁不应超过三块,其宽度一般为80mm~120mm
A.
正确
B.
错误
【判断题】学生社团应聘请一至两名有专长的本校教师或校外专业人士作为指导老师,并在指导老师的指导下开展活动。
A.
正确
B.
错误
【判断题】攻螺纹时底孔直径太小,起攻困难,容易引起螺纹的乱牙!
A.
正确
B.
错误
【简答题】He will ________ resign in view of the complete failure of the research project. A) doubtfully B) adequately C) presumably D) reasonably
【简答题】A.He would be promoted if he didnt leave. B.He must resign reluctantly. C.He shouldnt leave under some pressure. D.He has potentials to do better.
【单选题】He would rather______part in such dishonest business deals.
A.
resign than take
B.
resign than to take
C.
resign than taking
D.
resigning than take
【单选题】It he had not been hurt______ much, he d never resign from office.
A.
fairly
B.
just
C.
rather
D.
that
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