单项选择题

A healthy diet should contain all the necessary______.

A.nutrition
B.nutritious
C.nutrients

你可能感兴趣的试题

单项选择题

I know personal selling is also a very effective tool for building ______buyers’ confidence.

A.to
B.up
C.with

单项选择题

教室课桌面和黑板的平均照度值分别不低于()。

A.120LX;130LX
B.90LX;100LX
C.150LX;200LX
D.100LX;150LX