A. goover B. haveread C. referto D. checkup
A. in a good condition B. in good conditions C. in good condition D. in the good condition
A. Intellectual property is an intangible creation B. Intellectual property in ludes patents，trademarks，copyrights，etc. C. Intellectual property is a visible creation D. There are some agreement sconcerning intellectual property under the WTO
A. 正确 B. 错误
A. has，of B. with，in C. have，in D. with，of
A. we have seen B. we had seen C. seen we have D. have we seen
A. Enclose, detailed B. Enclosed, detailed C. Enclose, details D. Enclosed, details
A. book with you an order B. book your order C. be in the market D. place a order with you
A. cannot B. being unable C. not able D. not be able
A. to，be B. at，being C. to，being D. at，tobe
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