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【单选题】
We drift back to our office, wondering how to _______the wasted time.
A.
make up
B.
make up for
C.
make up with
D.
make out for
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【单选题】提高流体在直管中的流速,流动的摩擦因数 λ 与沿程阻力损失 h f 将发生什么变化?
A.
λ 将减小 , h f 将增大
B.
λ 将增大, h f 将减小
C.
λ 、 h f 都将增大
D.
λ 、 h f 都将减小
【简答题】选词并用适当形式填空 clean  fold   make  take  sweep  do  help   use  watch  go 1.  Could you please ______ him with his listening? 2.  Can I ______ your computer? Mine is broken. 3.  The little girl is going t...
【判断题】差数法是指对于发生的差错只查找末位数,以提高查错效率的方法。
A.
正确
B.
错误
【单选题】6个月小儿牛乳喂养,正确的喂养方法是( )
A.
2:1奶+辅食
B.
3:1奶+辅食
C.
4:1奶+辅食
D.
5:1奶+辅食
E.
全奶+辅食
【简答题】State some important cities in Canada.
【判断题】感应电动机频率归算的本质是用一个等效的静止的转子代替实际旋转的转子。
A.
正确
B.
错误
【单选题】对于发生的差错只查找末位数,以提高查错效率的方法是
A.
差数法
B.
尾数法
C.
除2法
D.
除9法
【单选题】Gardening The technology of beauty Now, gardening was driven by three main trends: technological change, plant prospecting and fashion. Of these, the most important was technology, whose advances made...
A.
Y
B.
N
C.
NG
【单选题】提高流体在直管中的流速,流动的摩擦因数 与沿程阻力损失 h f 将发生什么变化?
A.
( A ) 将减小 , h f 将增大
B.
( B ) 将增大, h f 将减小
C.
( C ) 、 h f 都将增大
D.
( D ) 、 h f 都将减小
【单选题】The idea of flying car is mentioned to illustrate______.
A.
a common perception of technology as characterizing the future
B.
a failed goal amid overwhelming technological success
C.
a goal that will be achieved in the future through technology
D.
the flawed vision of the future that many people held and some continue to hold
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