具有泻下通便,清肝杀虫作用的是______
A.大黄 B.芦荟C.苦楝皮 D.番泻叶E.使君子
参考答案:B
从括号中选出适当的词填空,把句子补充完整。
1. California is a city of (America, Canada).
2. (Where, What) does an elephant live?
3. Are there many (city, cities) in this country?
4. My mother works (on, in) Beijing.
5. My little sister is (younger, older) than me.
6. East points (left, right) on the map.
我们能看到本身不发光的物体,是因为光照到物体上发生了______.(选填“镜面反射”或“漫反射”)