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【简答题】
根据价层电子对互斥理论，推测BrO 4 - 的空间构型为（），Br采用（）杂化方式；IF 3 的空间构型为（），I采用（）杂化方式。
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【单选题】His poor standard of play fully justifies his ______ from the team for the match next Saturday.
A.
rejection
B.
exclusion
C.
exception
D.
elimination
【判断题】Article 25 in the UDHR (1948) declares that: "Everyone has the right to a standard of living adequate for the health and well-being of himself and of his family, including food, clothing, housing and ...
A.
正确
B.
错误
【简答题】The history of Basketball Basketball was invented in December 1891 by the Canadian-American educator James Naismith. Naismith invented the on the request of his superior, Dr Luther H. Gulick, tha...
【单选题】下列关于指针式万用表说法中正确的是( )
A.
欧姆表的每-档的测量范围是0 ~∞
B.
不同档的欧姆表测量同一电阻的阻值时,误差大小是一-样的
C.
用欧姆表测电阻时,指针越接近刻度盘中央,误差越大.
D.
用欧姆表测电阻,选不同量程时,指针越靠近右边误差越小
【简答题】The ____standard of his paper was so high that even some of his teachers could not understand it well. (academy)
【单选题】His poor standard of play fully justifies his _____ from the term for the match next Saturday.
A.
rejection
B.
expulsion
C.
exclusion
D.
exception
【单选题】用指针式万用表测量电阻的刻度,下列说法正确的是( )。
A.
刻度线是均匀的
B.
指针偏转到最右端时 ,电阻为无穷大
C.
指针偏转到最左端时 ,电阻为无穷大
D.
指针偏转到中间时 ,电阻为无穷大
【单选题】When Mr.Black saw the student _____________, he regretted _________ his students that the student didn't meet the standard of his favorite college.
A.
cry ; to inform
B.
cried ; to informing
C.
cry ; having informed
D.
cried ; informed
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