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【单选题】
已知数组 a =(1,3,-2) , b =(2,1,0) ,则 a -2 b = ( )A.
(-3,1,-2)
B.
(5,5,-2)
C.
(3,-1,2)
D.
(-5,-5,2)
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举一反三
【单选题】It can be inferred from the fifth paragraph that .
A.
fat people need to have higher blood pressure to sustain the circulation
B.
thin people rarely suffer from hypertension
C.
obesity is doctors' first concern in treating hypertension
D.
hypertensives have a much bigger blood volume than normal people
【简答题】按要求改写下列句子。 1. The weather is cool . (就画线部分提问) _______________________________________________________________________ 2. I wear my dress in summer. (就画线部分提问) __________________________________________...
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【简答题】按要求改变下列句子。 A . We have English on Wednesday and Saturday .（就画线部分提问） B . Today is Sunday .（就画线部分提问） C . Today is April 5th, 2005 .（就画线部分提问） D . The book is on the desk .（就画线部分提问） E . There is a cup of ...
【单选题】It can be inferred from the fifth paragraph that______.
A.
the author is against the jury system
B.
the jury is seldom adequately informed about the ease he is hearing
C.
better educated people should be selected for the jury
D.
enough legal knowledge helps jurors make fairer decisions
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