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【简答题】
完成句子. 1. The relatives of the victims in the earthquake asked for £43 million from the seven experts _____(被指控) failing to give enough warning about the disaster. (accuse) 2. It was on the day before the press conference _____ (他们安排作家) to meet a number of readers. (arrange) 3.______ (系牢安全带) or your next sleep will be the last one. (keep) 4. Sometimes you are too proud because you do not want your parents ______ (赞同) what you do as if you were an underdog. (approve) 5. All my efforts______ (非常集中于) the hard task that I wasn't able to spare any time for other jobs. (concentrate) 6. The online research-based study demands that a report of at least 300 words ______(要完成) by each student, or they shall not get th e credit. (accomplish) 7. Angry fans argue that seldom______ (球队获胜) a match so far and that they can hardly tolerate their awful performance any more. (win) 8. ______ (这部电影吸引我的是) was not the poor story plot but the amazing vision effect on 3-D screens. (attract) 9. (背弃) on the food safety rules, the greedy merchants should add 'gutter oil' to people's food, which dirties China's food reality.______ (turn) 10. You cannot be too careful, because the more enthusiastic the stranger appears, (越有可能) he is to take you in. ______ (likely)
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【单选题】After a quarrel, the couple finally settled down _____ their kid's future education. [     ]
A.
to discussing
B.
discuss
C.
of discussing
D.
discussing
【单选题】能说明CH 4 分子的5个原子不在同一平面而为正四面体构型的是(   )
A.
两个键之间夹角为109°28′
B.
C—H键为极性共价键
C.
4个C—H键的键能、键长相同
D.
碳的价层电子都形成共价键
【单选题】The couple finally bought the house they wanted, for they______enough money.
A.
had saved
B.
were saving
C.
would save
D.
were to save
【多选题】X、Y、Z是原子序数依次增大且属于不同周期的三种常见短周期元素,三种元素相互之间可以形成1︰1型的化合物M、N、R,常温下M、N为固体,R为液体。M、N遇到水都能产生气体,而且产生的气体相互可以化合,下列说法正确的是
A.
R中有极性共价键和非极性共价键
B.
Z是地壳中含量最多的元素
C.
三种化合物都是共价化合物
D.
M、N投入水中所得溶液中溶质相同
【单选题】What do the couple decide to do finally?
A.
Go and see a horror film.
B.
Stay at home and watch an Ice Bucket Challenge on TV.
C.
Go to a movie in the neighborhood
D.
Go downtown next Friday.
【单选题】某企业购入丙材料,增值税专用发票上注明货款 20000元,增值税3400元,发生运杂费300元,则丙材料的采购成本为( )。
A.
20000 元
B.
23400 元
C.
20300 元
D.
23700 元
【单选题】短周期元素X、Y、Z、W的原子序数依次增大,其中Y、Z原子的核外电子数之和与X、W原子的核外电子数之和相等,Z单质可以用来冶炼其它熔点较高的金属,X和W间可形成一种能产生酸雨的化合物,则下列说法不正确的是
A.
原子半径从大到小顺序为:W>Z>Y>X
B.
X与Y可形成既含离子键又含非极性共价键的化合物
C.
X、W分别形成简单的氢化物中,前者的沸点高
D.
X形成单核阴离子的核外电子数与Y、Z、W原子的核外内层电子数相同
【单选题】生理维持液的渗透压是:
A.
等张
B.
1/2张
C.
1/3张
D.
2/3张
【单选题】下列说法不正确的是( )
A.
活泼金属原子与活泼非金属原子之间形成的化学键一般为离子键
B.
原子间形成共价双键,有1个是 键
C.
不同原子形成的共价键一定是极性共价键
D.
固体物质都是晶体
【单选题】Q10: What do the couple decide to do finally?
A.
Go and see a horror film.
B.
Stay at home and watch an Ice Bucket Challenge on TV.
C.
Go to a movie in the neighborhood.
D.
Go downtown next Friday.
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