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【单选题】
PT100温度传感器的电阻值()。A.
随着温度的升高而增大
B.
随着温度的升高而降低
C.
随着温度的降低而增大
D.
不随温度而变
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举一反三
【单选题】He showed me a book, from the cover of _____ I could tell it was pretty old. A. that B. which C. it D. where
A.
that
B.
which
C.
it
D.
where
【单选题】He showed me a book, _____ I could tell that it was pretty old.
A.
which cover
B.
of which cover
C.
the cover which
D.
from the cover of which
【单选题】一台混凝土搅拌机搅拌一次延续时间为120s(包括上料、搅拌、出料时间),一次生产混凝土O.2m 3 ,一个工作班的纯工作时间为4h,则该搅拌机的正常利用系数和产量定额为( )。
A.
0.5 ；48
B.
2 ；48
C.
O.5 ；24
D.
2 ；24
【判断题】判断以下句子数据简单句的何种类型? She came. She dances. I saw her. They like watching TV. I give her a book. She showed her friends all the pictures. There is a tree in front of the house. There are some flowers in t...
A.
正确
B.
错误
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