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【简答题】
GPS系统的空间部分由21颗工作卫星及 颗备用卫星组成,它们均匀分布在6个轨道上,距地面的平均高度为 km,运行周期为11小时58分。
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皮皮学刷刷变学霸
举一反三
【单选题】He tends to drive too fast after excessive drinking.
A.
is forbidden to
B.
is expected to
C.
is likely to
D.
concern fo
【单选题】After a heavy rain , There is ___________ water on the playground .
A.
too much
B.
too many
C.
much too
D.
many too
【简答题】A lot of people could fall ill after drinking contaminated water.
【单选题】—______ drive after drinking. It’s too dangerous(危险的). —OK. I won’t.
A.
No
B.
Not
C.
Don’t
D.
Doesn't
【单选题】You must not drive after drinking. (改成祈使句)
A.
Don’t drive after drinking.
B.
Not drive after drinking.
C.
Must not drive after drinking.
【单选题】Habit such as _______ is bad for our health.
A.
eating too much junk food
B.
drinking much too coffee
C.
playing basketball
D.
stay up late
【单选题】M rs . Smith warned her daughter after drinking.
A.
never to drink
B.
to never drink
C.
never drinking
D.
never drink
【单选题】We __________ sleeping on the floor after drinking too much.
A.
ended up
B.
in the end
C.
at the end of
D.
by the end of
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