—LiYang is a hard-working boy.

—I agree. But he shouldn't _______ too late at night, or he'll be stressed out. [ ]

A. look up

B. stay up

C. make up

D. wake up

既能温中止血，又可治疗胃寒呕吐、脾虚久泻的药物是()

A.艾叶

B.仙鹤草

C.香附

D.灶心土