三个完全相同的小球A、B、C,质量满足mA=mB=mC=2kg,静止在光滑地面上并沿“一”字形依次排开.如图所示,用锤子轻轻敲击A球,使之获得一个向右的速度v0=4m/s,A、B两球碰撞后粘合在一起,再与C球碰撞,最后C球获得vC=2m/s的向右的速度.
2016年7月12日,海牙国际仲裁法庭对南海仲裁案做出“最终裁决”判菲律宾“胜诉”,还宣称中国对南海海域没有“历史性所有权”。对此,中国外交部发表“不参与、不接受、不承认”的声明。材料体现了( )
根据短文内容,选择正确答案。
Mike is a middle school student. He is 16 years old. He had a bad cold last night. He felt bad and couldn't eat anything. So he went to see a doctor. The doctor gave him a bottle of medicine. But he doesn't know when to take the medicine. Can you tell me what the doctor means? These are the instructions (用法说明):
You should shake (摇晃)it before you take. Take it three times a day after meals.
Dose (剂量)
Age: over 15 2 teaspoonfuls
8-15 1 teaspoonful
5-7 1/2 teaspoonful
Children under 5 years old can't take this medicine.
Please put it in a cool place. Take it before June 1st, 2014.