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【判断题】
11a的采用 OFDM 调制技术以提高信道利用率。A.
正确
B.
错误
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举一反三
【简答题】He/She mentions that jokes can be useful in context.
【多选题】Why did Amy take up economics?
A.
She was interested in it,
B.
She felt it useful.
C.
She was advised to take it.
D.
She was forced to take it.
【简答题】A．She thinks they are impractical. B．She thinks they are useful but too expensive. C．She thinks they are feasible. D．She thinks they are not instructive enough.
【多选题】Why did Amy take up economics?A．She was interested in it,B．She felt it useful.###
A.
Why did Amy take up economics? A．She was interested in it,
B.
She felt it useful.
C.
She was advised to take it.
D.
She was forced to take it.
【简答题】妈妈炖了一锅鸡汤，先用小勺舀了一点尝尝味道，这是利用了______的思想．
【单选题】_____ you have offered her! She is out of trouble now. [ ]
A.
What useful advice
B.
What a useful advice
C.
How a useful advice
D.
How useful advice
【简答题】妈妈炖了一锅鸡汤,先用小勺舀了一点尝尝味道,这是利用了 的调查方式。(选填“全面调查”或“抽样调查”)
【简答题】炒熟的甜杏仁
【单选题】She is ________ new comer to ________ physics but she has made some useful inventions already
A.
the, the
B.
the, /
C.
a, /
D.
a, the
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