单项选择题

A．When a patient is at an old age.
B．When a patient is very young.
C．When a person doesn’t take foods containing vitamins.
D．When a patient stops vitamins injections.
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单项选择题
A．From themselves.B．From the other people.C．From their parents only.D．From schools.
A．From themselves.
B．From the other people.
C．From their parents only.
D．From schools.
单项选择题
A．It is greater for her to see a shorter play.B．It is worth seeing the play over five times.C．He likes the play better than she does.D．He doesn’t think the play is as good as she thinks
A．It is greater for her to see a shorter play.
B．It is worth seeing the play over five times.
C．He likes the play better than she does.
D．He doesn’t think the play is as good as she thinks
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