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【单选题】
在该产妇第三产,下列处理措施不妥的是A.
宫缩欠佳时,可注射缩
B.
注射麦角新碱预防产后出血过多
C.
遵医嘱输血、输液
D.
胎盘娩出后,应按摩子宫,促进子宫收缩
E.
胎儿娩出后,腹部置沙袋
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皮皮学刷刷变学霸
举一反三
【单选题】关于卤族元素的化学性质下列叙述正确的是
A.
氢氟酸是强酸，所以具有强腐蚀性
B.
卤族的原子半径由大到小顺序为I＞Br＞Cl＞F
C.
碘难溶于酒精，所以能用酒精从碘水中萃取碘
D.
因为碘易溶于酒精，所以能用酒精从碘水中萃取碘
E.
卤族元素的最高氧化物的水合物的酸性从氟到碘增强
【单选题】What did people worry most about when Bill Gates was a kid?
A.
World War
B.
A nuclear war
C.
Money
D.
Food
【单选题】When Bill Gates was a kid, the disaster people worried about most was _______.
A.
a nuclear war
B.
an earthquake
【单选题】如图是稀酸对Fe－Cr合金随Cr含量变化的腐蚀性实验结果，下列有关说法正确的是
A.
稀硝酸对Fe－Cr合金的腐蚀性比稀硫酸和稀盐酸的弱
B.
稀硝酸和铁反应的化学方程式是Fe+6HNO 3 （稀）= Fe(NO 3 ) 3 + 3NO 2 ↑+ 3H 2 O
C.
Cr含量大于13%时，因为三种酸中硫酸的氢离子浓度最大，所以对Fe－Cr合金的腐蚀性最强
D.
随着Cr含量增加，稀硝酸对Fe－Cr合金的腐蚀性减弱
【简答题】Fill the blanks with the words and phrases you have heard. He’s the most 1 businessman in the world. Many 2 have been written about how he has dominated the revolution in personal 3 . But we know litt...
【单选题】When Bill Gates was in high school, he __________ .
A.
was always highly focused on writing software.
B.
attended different kinds of classes
C.
had many interests
D.
read about all kinds of things
【单选题】Identify two closest exits and all potential ________ routes.
A.
escape
B.
departing
C.
running
D.
evacuation
【单选题】During the years when Bill Gates was a kid, the disaster people worried about most was ____________________.
A.
a hurricane
B.
a nuclear war
C.
an earthquake
D.
an epidemic
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