从4名男生和2名女生中任选3人参加演讲比赛,则所选3人中恰有1名女生的概率是 .
— Do you mind if I open the window?
— ______ I feel a bit cold.
A.Of course not.
B.I would rather you didn’t.
C.Go ahead.
D.Why not?
胸膜炎
A.咳嗽伴发热B.咳嗽伴胸痛C.咳嗽伴呼吸困难D.咳嗽伴咯血E.咳嗽伴哮鸣音