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【判断题】
缓冲溶液必需同时具有抗酸成分和抗碱成分 。( )A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】This is _____ useful book that we all need to read it. [ ]
A.
such an
B.
such a
C.
so
D.
so a
【单选题】---Which book do you think is the most useful to my studies? ---________, as long as you read it. In fact, they are out of date.
A.
None
B.
Neither
C.
Any
D.
Either
【简答题】物联网的价值在于让物体也拥有了“智慧”,从而实现______与物、 ______ 与物之间的沟通。
【简答题】How to examine an L/C?
【单选题】This is _____ useful book. I read _____ book every day. [ ]
A.
an, /
B.
an, the
C.
a, the
D.
a, a
【简答题】The study was means to examine how the brain reacts to electromagnetic fields caused by wireless phone signals.
【单选题】---What _____useful book ! ---Yes, it is. But I find it ______ difficult for me to read.
A.
an, very
B.
a, too
C.
an, too
D.
a, quite
【单选题】What the author proposes to examine is______.
A.
how far the unemployed are to blame for their failure in working and how far it is the State's fault
B.
to what extent the State should insist on the unemployed working if they fail to do so
C.
whether being at work is a social duty which the State should ensure everybody carries out
D.
whether work should be obligatory, and if so, whether the State or the individual is responsible for enforced obligation
【单选题】The speaking outline won't be useful if you can't read it at distance instantly.
A.
Y
B.
N
C.
NG
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