具有泻下攻积,润燥软坚,清热消肿功效的药物是()
A.大黄
B.芦荟
C.芒硝
D.番泻叶
E.郁李仁
参考答案:C
—What are they doing for vacation?
—They're ______ at home.
A. relaxing
B. relaxed
C. relax
D. relaxes
闪电的形状最常见的是()。
A、球状
B、片状
C、枝状
D、带状