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【单选题】
I’m afraid all our standard rooms are __________.
A.
busy
B.
taken
C.
out
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【判断题】佛尔哈德法的剩余滴定法中,测定溴化物或碘化物时,由于AgBr和AgI沉淀的溶解度都比AgSCN沉淀的溶解度小,则不必加有机溶剂。
A.
正确
B.
错误
【单选题】Mr. Stone sat tight-lipped, until toward the end when he slowly turned to the right and then to the left, looking at each of us in turn as if he wanted to _________ the picture on his mind.
A.
remember
B.
record
C.
take
D.
register
【单选题】Mr. Smith, with the result of the experiment, sat on the chair, smiling.
A.
satisfied; exciting
B.
satisfying; excited
C.
satisfied; excited
D.
satisfying; exciting
【单选题】Mr.Wood guarantees that Mr. Feng will ()their equipment.
A.
satisfy
B.
satisfactory
C.
be satisfied with
D.
satisfy with
【单选题】The jeweler assured Mr. White that the stone was a ___ diamond and not an imitation.
A.
graceful
B.
glittering
C.
genuine
D.
genius
【单选题】The girl sat there, still. It seems as if she _______ a stone.
A.
is
B.
was
C.
will be
D.
were
【单选题】The beautiful stone _________ as much as 2.5 tons was placed in Mr. White’s garden last week.
A.
weighed
B.
weighing
C.
to be weighed
D.
being weighed
【判断题】理论上,只需要杂合子的适合度略微高于两种纯合子,平衡选择就会发生。
A.
正确
B.
错误
【简答题】Mr. Stone sat ______________(紧闭嘴巴的), until toward the end when he slowly turned to the right and then to the left, looking at each of us in turn as if he wanted to ______________(深深记住)the picture on h...
【简答题】数据没有冗余度能否压缩?为什么?
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