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【单选题】
中国第一艘载人飞船“神舟五号”于2003年10月15日发射成功，中国第一个飞上太空的航天员乘该飞船在太空飞行了_____。A.
21个多小时
B.
22个多小时
C.
24个多小时
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皮皮学刷刷变学霸
举一反三
【单选题】The machine will continue to make much noise ___ we have it repaired.
A.
when
B.
bacause
C.
if
D.
unless
【简答题】Ese anillo ya no _____ llevo puesto.
【简答题】已知： ，则m=___________。
【单选题】Volts from the Sky Lightning has caused awe and wonder since old times. Although Benjamin Franklin demonstrated lightning as an enormous electrical discharge more than 200 years ago, many puzzles stil...
A.
Cloud-to-ground lightening occurring in the US
B.
Types of lightening
C.
Cause of lightening
D.
Differences between thunder and thunderstorm
E.
Frequencies of thunderstorms occurring in the world and the US Paragraphs 2 and 3 ______.
【简答题】In earliest times, men considered lightning to be one of the great mysteries (神秘的事物) of nature. Some ancient peoples believed that lightning and thunder were the weapons (武器) of the gods. In reality, ...
【单选题】Llevo _____al hospital.
A.
a mis abuelos
B.
mis abuelos
C.
a mi abuelos
D.
a mis abuelo
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