If Alice ______this afternoon, the meeting should be put off.

A．would not come

B．might not come

C．should not come

D．could not come

不参与Ⅰ型超敏反应的细胞是（）

A.嗜碱性粒细胞

B.肥大细胞

C.浆细胞

D.中性粒细胞

E.嗜酸性粒细胞