—Our school is going to hold the ________ Culture Festival.

—Yes! And we can take part in ________ activities.

A．Fifth; fifth

B．Five; fifth

C．Fifth; five

D．Five; five

万古霉素的不良反应有（）

A.胃肠道反应

B.灰婴综合征

C.二重感染

D.呼吸抑制

E.红人综合征