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【判断题】
量子数l,m相同的原子轨道,它们的角度分布就相同。A.
正确
B.
错误
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【单选题】I ______ the novel by the time you ______ back next week.
A.
have finished, will come
B.
shall have finished, come
C.
shall be finished, are going to come
D.
finish, come
【单选题】---Do you still have a headache, Billy? --- No, it's ________. I'm all right now, mum.
A.
dropped
B.
run
C.
left
D.
gone
【简答题】机构要能够运动,自由度必须 ,机构具有确定运动的条件是 。
【简答题】机构要能够运动,自由度必须 ,机构具有确定运动的条件是 。
【简答题】机构要能够运动,自由度必须 ,机构具有确定运动的条件是 。
【单选题】--What ____________when I phoned you? ----I_____________and began to have a bath.
A.
had you done; finished
B.
were you doing; had just finished
C.
did you do; had just finished
D.
were you doing; was finishing
【单选题】By () billy we have learned that you would like to establish business relations with us
A.
the courtesy from
B.
courtesies from
C.
the courtesies of
D.
the courtesy of
【判断题】澳大利亚国名为澳大利亚联邦,意为“南方大陆”,有“坐在矿车上的国家”、“骑在羊背上的国家”和“世界活化石博物馆”之称。首都悉尼,国花为金合欢。( )
A.
正确
B.
错误
【简答题】机构要能够动,自由度必须≥1,机构具有确定运动的条件是( )。
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