枳实治疗胸腹痞满、胃下垂、脱肛的药理学基础是（）
A.抑制胃肠平滑肌
B.兴奋心脏
C.兴奋胃肠平滑肌
D.抗溃疡
E.利胆
参考答案：C
In winter the small town is often _____ from the rest of the world. [ ]
A. cut up
B. cut down
C. cut off
D. cut in
基性岩浆岩主要由石英和斜长石组成。
