单选题：Byencouraging its employees to exercise General Motors could

题目内容：

Byencouraging its employees to exercise General Motors could save A．$790,000 per year
B．$ 7．1million per year
C．$3,000 per year
D．$7,300 per year

参考答案：

答案解析：

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

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

The two girls look alike．A．beautiful B．similar C．pretty D．attractive

分类：卫生类题型：单选题

分类：卫生类题型：单选题

分类：卫生类题型：单选题