三聚磷酸铝的防锈原理:帮我.谢谢

来源:百度文库 编辑:高校问答 时间:2024/05/04 19:50:02
1.Plants raised in greenhouses are tended methodically in an attempt to create the best possible conditions for their growth.
A. systematically B. reluctantly C. unanimously D. formally
2.The only songe officially approved by the Puritans were very simple hymns.
A. originally B. reluctantly C. unanimously D. formally
3. The use of wild animals in circuses was an innovation first introduxed in the United States.
A. a number B. a program C.amusical spectacle D. a new idea
4. Parole is usually granted to prisoners as a reward for good conduct.
A.paid to B. ignored by C. given to D.requested by
5.Some botanists fear that the worldwide transfer of plant species is threatening the Earth’s biological diversity.
A. accidental B. rapid C.illegal D. global
6. Benjamin Franklin was not the first to suggest the relationship between lightning and the electricity, but his experiment with a kite was original.
A. Define B. confirm C.examine D.propose.
7. In his The old Man and The Sea, Ernest Hemingway celebrates the indomitable courage of an elderly fisherman.
A.discusses B. investigates C.praises D. analyzes
8. New England town meetings, in their most highly developed form, are assemblies of the voters.
A. protests B. gatherings. C.responsibilities D. liabilities
9. The type and degree of molecular motion of a substance depend on the amount of thermal energy present.
A. are determined by B. limit C. radiate D. are supported by
10. Many of Edith Wharton’s best stories were completed under great personal strain.
A. poverty B.privacy C.resentment D.tension
11.People who live in cold climates eagerly look forward to warm, summer holidays.(sun)
12.They may have no but to stay in their hotel rooms for the greater part of the day.(choose)
13.The young, especially, have no abort hot weather. (complain)
14.For three weeks the country has enjoyed very unusual winter and sunshine .( warm)