单选题：Bayer started making aspirin because__________．

题目分类：卫生类
题目类型：单选题
号外号外：注册会员即送体验阅读点！

题目内容：

Bayer started making aspirin because__________． A．it helped prevent heart attacks
B．other companies were making it
C．it worked well in stopping pain
D．the manager was a scientist

参考答案：

答案解析：

求曲线3y＝e²上的一点(x，y)，使过该点的切线与直线y＝2x平行。

分类：卫生类题型：单选题

查看答案

He paused，waiting for her to digest the information．

He paused，waiting for her to digest the information． A．understand B．withhold C．e

分类：卫生类题型：单选题

查看答案

Byencouraging its employees to exercise General Motors could

Byencouraging its employees to exercise General Motors could saveA．$790,000 per

分类：卫生类题型：单选题

查看答案

Thestudy shows that the infant's cerebral cortex is working

Thestudy shows that the infant's cerebral cortex is working while he is asleep．A

分类：卫生类题型：单选题

查看答案

Everybody was glad to see Mary back．

Everybody was glad to see Mary back．A．sorry B．sad C．angry D．happy

分类：卫生类题型：单选题

查看答案