考博考试

【单选题】Smog-choked SouthernCalifornia (demands) them. It's a car for people who never want to go to (a) gas station again.But the fact is, for all the talk, selling (gas-less) machines has been a (hard-sell).
A．demands
B．a
C．gas-less
D．hard-sell
网考网参考答案：A
网考网解析：
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