Extract 1, 2 and 3 all imply the importance of______..
A. self respect
B. understanding
C. flexible opinion
D. self-examination
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In May 1989, space shuttle "Atlantis" released in outer space the space probe "Megal-lan",
A. problems of space travel
B. scientific methods in space exploration
C. the importance of Venus to the earth
D. conditions on Venus
Rogets Thesaurus is a book, and a very famous book, too. If youve never heard of it, dont
A. a book review
B. an advertisement
C. an editorial
D. a special report
北京的地形是_____高，_____低，山地占_____，它的最东端是_____;最西端是_____。
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