液化天然气的体积约为同量气态天然气体积的()。
A、1/600
B、1/480
C、1/800
D、1/680
参考答案:A
— Where is my English-Chinese dictionary? I put it on the desk yesterday.
— You ___ it in the wrong place.
A. must put B should have put C. might put D. might have put
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