POST的中文含义是（）
A.测试
B.上电自检
C.加电过程
D.自检
参考答案：B
陆生植物生活所需要的水分，主要依靠根尖的（）吸收。
A.根冠
B.分生区
C.伸长区
D.根毛区
The suspect was hitting the policeman on the head and knocked him down with a few wild kicks.
A. stroking B. sloping C. smiting D. smirching
