① How tall is it? ____ A. Zhang Yong.
② Who is the tallest boy? ____ B. Maybe 5 metres.
③ What size are your shoes?____ C. Forty yuan.
④ How much is your T-shirt? ____ D. Size 38
⑤ How old are you?____ E. I'm fifteen years old.
下列实验操作正确的是( )
某化合物在一定条件下与O2反应,生成N2和H2O,由此得出的关于该物质元素组成的结论中,不正确的是( )
“人类的幸福只有在身体健康和精神安宁的基础上,才能建立起来。”欧文的这句话表明未成年人人身权利中最重要、最起码的权利是( )