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【单选题】
若要测定水的总含量,应采用( )A.
烘干法
B.
减压干燥法
C.
卡尔 - 费休法
D.
物理干燥法
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【单选题】'Geothermal Energy' → Geothermal energy is natural heat from the interior of the Earth that is converted to heat buildings and generate electricity. The idea of harnessing Earths internal heat is not ...
A.
explaining the history of this energy source worldwide
B.
arguing that this energy source has been tried unsuccessfully
C.
comparing the production with that of other energy sources
D.
describing the alternatives for generating electric power
【简答题】AT89S52 片内含有 字节的ROM、 字节的RAM。片外有4组I/O口,分别为 、 、 、 ,每组包含 位I/O单口。
【单选题】Can you swim or play chess? _______ .
A.
Yes, I am
B.
Yes, I can
C.
I can swim
D.
I don’t know
【单选题】The cause for the heat in the interior of the earth is ______.
A.
not determined
B.
the great pressure of the earth
C.
radioactive elements
D.
the heat remaining from the formation of the earth
【简答题】幼儿离园时,引导幼儿整理自己的仪表和物品,还要提醒他们把物品 。
【单选题】Which of the following adjectives best depicts the interior of the coach?
A.
Modern.
B.
Luxurious.
C.
Practical.
D.
Complex.
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