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【简答题】
Ellsworth M. Statler, the famous hotel king in the United States, once said: "there is only one thing a hotel sells, and that is _________
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举一反三
【简答题】（）作为近代中国第一所海军制造与驾驶学校被誉为近代中国海军人才的摇篮。
【单选题】— What did Tina say just now? — She asked ____ this summer holiday.
A.
whether could you teach her dance
B.
that whether you could teach her dance
C.
if could you teach her dance
D.
if you could teach her dance
【简答题】压缩式制冷机中制冷剂在系统中经历( )、( )、( )和( )四个热力过程。
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