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【单选题】
汽车上采用的电是( )A.
直流电
B.
交流电
C.
两种电一起用
D.
220伏
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举一反三
【单选题】—More and more people have got to know the importance of English. ________，about six people in ten in this city are able to speak English. —That’s great.
A.
In other words
B.
Believe it or not
C.
To be honest
D.
To tell the truth
【单选题】行下牙槽神经阻滞麻醉时，针尖深入组织3.0cm未触及骨面，应该（）
A.
退出1.0cm，加大进针角度
B.
退出1.0cm，减小进针角度
C.
退至黏膜下，减小进针角度
D.
拔出注射针，重新注射
E.
退至黏膜下，加大进针角度
【单选题】Because of the bombing that killed six people Washington has been urging the spokesman to ______ terrorism more severely.
A.
charge
B.
censor
C.
blame
D.
denounce
【简答题】控制电路中一般要进行哪些保护?
【单选题】下牙槽神经阻滞麻醉时 ，针尖深入组织3.0cm未触及骨面，应
A.
拔出注射针 ，重新注射
B.
退出 l.Ocm 加大进针角度
C.
退出 l.Ocm 减小进针角度
D.
退至系占膜下，加大进针角度
E.
退至崭膜下，减小进针角度
【单选题】More and more people have got to know the importance of the English study. ______, about six people in ten in this city are able to speak a little English.
A.
Believe it or not
B.
In other words
C.
Besides
D.
However
【单选题】行下牙槽神经阻滞麻醉时，针尖深入组织3.0cm未触及骨面，应该
A.
退出1.0cm，加大进针角度
B.
退出1.0cm，减小进针角度
C.
退至黏膜下，减小进针角度
D.
拔出注射针，重新注射
E.
退至黏膜下，加大进针角度
【简答题】生物的亲代传递给子代一套遗传信息,使子代在形态、构造、生态、生理生化等方面与亲代保持相似性,这种现象称为 。
【单选题】A new international study shows that six people die every minute from smoking. That equals 3 million deaths around the world every year. If the present rate (率)of smoking continues, the number of deat...
A.
we must give up smoking
B.
smoking causes lung caner
C.
smoking does harm to health
D.
men like smoking much more than women
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