题目内容

A.beginB.startedC.knowD.hope

A. begin
B. started
C. know
D. hope

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过量汞进人体内能引起E.

酸中毒时不宜E.

A.They differ in their standards of choosing husbands.B.They can choose their husbands

A. They differ in their standards of choosing husbands.
B. They can choose their husbands by themselves.
C. They have different attitudes towards love.
D. They are different from each other in their sense of responsibility.

A.beB.beingC.been

A. be
B. being
C. been

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