题目内容

question 2

A. He should begin the work two weeks before the exhibition.
B. He should register for all the electric power at the information desk.
C. He should ask for help if he can’t finish decorating the booth.
D. He should pay an additional fee for deferment.

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A. Pajamas.
Bathrobes.
Cheongsams.
D. Bed gowns.

A. It is too small for a discount.
B. It is too big for the supplier.
C. It is for 600 Cheongsams.
D. It is for the full range of sizes.

A. 208 RMB .
B. 188 RMB.
C. 500 RMB.
D. 600 RMB.

A. 范德华力
B. 共价键；
C. 离子键
D. 氢键