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【简答题】
一个优秀的产品图片的标准
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举一反三
【简答题】完形填空。 I have my dream job. In ten years, I think I'll be a reporter. I'll live 1 Chengdu because I went to Chengdu last year with my parents and fell in love 2 it. I think it's really a big and 3 city...
【简答题】修复老照片
【简答题】阅读理解 Bernard Longmore is a reporter of a national newspaper.I talked to him recently and have found something interesting about him.Bernard went to our school and is now a reporter for a national news...
【判断题】氨基酸是两性电解质,但是氨基酸的电离受溶液pH 值的影响
A.
正确
B.
错误
【简答题】氨基酸是两性电解质,当pH等于pI时,氨基酸所带净电荷为 ,此时溶解度_____。
【单选题】氨基酸是两性电解质是由于分子结构中含有
A.
氨基
B.
羧基
C.
同时含有氨基和羧基
D.
羟基
【单选题】—I find a in a TV station a reporter. —Oh, you will be busy and have a lot of to do. [     ]
A.
work; be; job
B.
work; are; job
C.
job; as; works
D.
job; as; work
【简答题】氨基酸是两性电解质,其解离方式取决于所处溶液的______。
【多选题】氨基酸是两性电解质,当氨基酸所处环境的pH大于pI时,氨基酸分子带 ,pH小于pI时,氨基酸带 ,pH等于pI时,氨基酸所带净电荷为零,此时溶解度
A.
负电荷
B.
正电荷
C.
最小
【单选题】为防止急性自血病患者继发感染,错误的护理措施是
A.
做好口腔护理,经常漱口
B.
保持皮清洁,防止破损
C.
保持大使通畅,以防肛裂
D.
限制探視
E.
使用药物尽量采用肌内注射
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