题目内容

经典途径激活血清补体作用最强的IgG是

A. IgG1
B. IgG2
C. IgG3
D. IgG4
E. IgM

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更多问题

When did Cooper meet with Tina?

A. at the autumn trade fair this year.
B. at the autumn trade fair last year.
C. at an exhibition last year.
D. at a cloth show.

Anderson Cooper is interested in.

A. woman's shoes
B. man's shoes
C. woman's shirts
D. man's shirts

Anderson Cooper is form Vancouver.

A. 对
B. 错

Tina invited Cooper to have a tour in her company.

A. 对
B. 错

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