Scientistshavedevelopedanon-stickchewinggum.Thenewgumca...
问题详情:
Scientists have developed a non-stick chewing gum. The new gum can _1_____ (remove) easily from pavements, shoes and clothes. It’s the result of polymer (聚合体) research at the University of Bristol and could be launched commercially in 2008. ___2___ it catches on(流行), the product will solve __3___ major headache for present authorities around the world.
“The advantage of our Clean Gum is that _4_______ has a great taste, it is easy to remove and has the potential to be __5________ (environment) degradable (可降解的),” said Terence Cosgrove, a professor of chemistry __6 ___ helped to found a company called Revolymer to commercialize the technology.
Today’s chewing gums are made from synthetic(人工制造的) latex(植物的乳汁), which is resistant _7____ the weather and is strongly sticky. The new gum adds a special polymer to modify(修改,改变) its properties(特*), _8 _____ (make) it far __9 ___ sticky.
In two street trials, other commercial gums remained stuck to the pavement ___10 ___ Clean Gum came away(脱掉,脱落) naturally in all cases.
【回答】
1. be removed 2. If 3. a 4. it 5. environmentally
6. who 7. to 8. making 9. less 10. while
知识点:语法填空
题型:阅读填空
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反比例函数与直线相交于点点的横坐标为,则此反比例函数的解析式为( ) A. ...
问题详情:反比例函数与直线相交于点点的横坐标为,则此反比例函数的解析式为( ) A. B. C. D.【回答】C;知识点:反比例函数题型:选择题...
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—Thestateofillnessiscomplicated.Weneedanexperienceddoct...
问题详情:—Thestateofillnessiscomplicated.Weneedanexperienceddoctor.—Whomwouldyouliketohave____? A.sentfor B.sendfor C.tosendfor D.beens...
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下列物质的稀溶液中,溶质的*、阳离子个数之比为1:2的是( ) A.Na2HPO4B.NaHSO4C.(NH...
问题详情:下列物质的稀溶液中,溶质的*、阳离子个数之比为1:2的是()A.Na2HPO4B.NaHSO4C.(NH4)2SO4D.K2S【回答】考点:盐类水解的应用.专题:盐类的水解专题.分析:首先判断离子化合物的*阳离子组成,然后判断离子是否能够水解,进而可判断溶质的*、阳离子个数之比.解答:解:A.HPO42﹣水解,*、...
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以下各组国家中,人口增长模式不同的是A.阿曼和孟加拉国 B...
问题详情:以下各组国家中,人口增长模式不同的是A.阿曼和孟加拉国 B.巴西和匈牙利C.澳大利亚和美国 D.韩国和新加坡【回答】B知识点:人口与地理环境...
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