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【单选题】
建筑石膏的主要化学成分( )A.
CaSO4.2H2O
B.
CaSO4
C.
CaSO4.1/2H2O
D.
Ca(OH)2
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举一反三
【单选题】Opinion polls repeatedly tell us that the only thing Americans worry about more than the environment is their health. This is【B1】understandable, for health is obviously【B2】to illness. What makes today...
A.
entirely
B.
chiefly
C.
exclusively
D.
mostly
【单选题】What is the only thing the driver of the future car has to do?
A.
Choose the right route.
B.
Refuel the car regularly.
C.
Start the engine.
D.
Tell the computer where to go.
【简答题】外部存储器包括硬盘、（）、（）。
【单选题】Which of the following sentences is not true about “connecting the dots”?
A.
“Connecting the dots” uses the rhetorical device of “metaphor”.
B.
“Dots” refer to the punctuation mark meaning “period”.
C.
“Connecting the dots” is a puzzle where the person draws lines to connect a sequence of numbered dots to reveal a picture.
D.
“Connecting the dots” means that your current seemingly useless experiences would be of significance when the occasion demands in the future.
【简答题】The only thing now standing()of further progress is lack of money. A)on the way B)in the way C)by the way D)off the way
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