题目内容
(请给出正确答案)
[单选题]
To improve parent-child relationships, teenagers are advised to be()
A.obedient
B.responsible
C.independent
D.co-operative
提问人:网友lixin080108
发布时间:2022-01-07
A.obedient
B.responsible
C.independent
D.co-operative
B.responsible
C.co-operative
D.independent
B.watch their children while they are at work
C.search for information for their children
D.make friends with their children
B.对钠离子及钾离子通透性增加,发生去极化
C.仅对钾离子通透性增加,发生超极化
D.仅对钙离子通透性增加,发生去极化
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