蛇床子的功效是
A.攻毒杀虫,祛风止痛B.解毒杀虫止痒,补火助阳通便C.杀虫止痒,燥湿祛风,温肾助阳D.解毒,止痛,开窍醒神
参考答案:C
Knowledge and learning are important if we want to be successful,but they may
also ____ ourthinking. [ ]
A. direct
B. limit
C. change
D. improve
地下管线的埋深可分为()
A.内底埋深
B.外底埋深
C.外顶埋深
D.内顶埋深