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【判断题】
随着深度的增加由于岩石导热率的增加,岩石温度趋于一致,地温梯度也会逐渐降低。A.
正确
B.
错误
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举一反三
【单选题】Their mother limits stimulating activities like videogames and doesn't allow them to watch violent TV programs.
A.
terrifying
B.
terrific
C.
exciting
D.
uninteresting
【单选题】Their mother limits stimulating activities like videpgames and doesn't allow them to watch violent TV programs.
A.
Terrifying
B.
Terrific
C.
Exciting
D.
Uninteresting
【单选题】Their mother limits stimulating activities and also makes sure that her children drink caffeine in soft drinks.
A.
no
B.
a little
C.
plenty of
【简答题】合力对某点的力矩,等于各分力对该点之矩的代数和。这个关系称为()。
【简答题】力系合力对某点的力矩,等于该力系各 对同点力矩的 和。
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