题目内容

If we say somebody is really healthy, we mean it is _______health.

A. physical
B. mental
C. physical and mental

查看答案

搜索结果不匹配？点我反馈

更多问题

If you want to keep healthy, you must be_______.

A. optimistic.
B. pessimistic
C. discouraged

From the dialouges of this part, we can learn that it is helpful for our health except___.

A. doing more exercises
B. keeping balanced diet
C. sleeping all day

凸轮机构通常由下列构件组成（）

A. 主动件、凸轮和机架
B. 主动件、从动件和推杆
C. 凸轮、推杆和机架
D. 主动件、凸轮和从动件

按凸轮形状分类，凸轮机构分、、。