选择合适的搭配。

照顾____    老师

尊敬____    病人

摇着____    敌人

打倒____    尾巴

                                        B   

    Do you want to be in good health? Try to do the following things! You can become stronger.

    Drink eight cups of water every day. Water helps your body in many ways.

    Don't forget to eat your breakfast. Breakfast gives you everything your body needs for the morning.

    Go for a walk every day after meals. Walking is a good exercise, and people need exercise for good health.21教育名师原创作品

    Stretch for five minutes after sitting for one or two hours. Stretching your arms and legs is good for your body.

    Have a rest about twenty minutes when you are tired. You may do something different to take a rest, such as, get up and walk, sit down to listen to music and so on.

不能鉴别出某溶液的pH＜7的实验方法是（　　）

在游乐园乘坐过山车时，游客会出现心跳加快、呼吸急促的现象，该生理现象的发生主要依赖于（   ）