蒙台梭利教育方法的根本和核心是( )
A．“有准备的环境”
B．“工作”
C．“导师”
D．“儿童之家”
参考答案：A
用括号内所给词的适当形式填空。
1. The more _________ (exercise) you take, the healthier you will be.
2. I think going _________ （run）is the best way to keep fit.
3. This storybook _________ （interest）me very much when I was a little
boy.
4. - Hey, Tony. What are you doing over there?
- I’m reading a magazine on health and _________ （fit）.
5. You must give up _________ （smoke）. It’s bad for your health.
进行危急保安器撞击子弹簧背帽调整时，其旋转5º时转速相对应改变（）r/min。
A.20
B.25
C.30
D.35
you will be.