Newton was playing under an apple tree __爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题选择题

Newton was playing under an apple tree ____ an apple fell onto his head.[ ]

A. when

B. while

C. after

D. before

答案

答案：A

单项选择题

细胞内出现Mallory小体常见于（）。

A.门脉性肝硬化

B.坏死后性肝硬化

C.淤血性肝硬化

D.酒精性肝硬化

E.胆汁性肝硬化

单项选择题

能收涩止带的药物为()

A．秕杷叶

B．麻黄

C．紫苏

D．白果

E．款冬花