问题
单项选择题
儿童发育成熟意味着
A．身高体重达到成人水平
B．生长、发育基本结束，机体达到成人水平
C．骨骼、牙齿钙化基本完成
D．男孩出现遗精，女孩月经初潮发生
E．以上都不对
答案
参考答案：B
解析：发育成熟指生长和发育达到完备，机体在形态、生理、心理上全面达到成人水平，具备生殖养育下一代的能力。
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儿童发育成熟意味着
A．身高体重达到成人水平
B．生长、发育基本结束，机体达到成人水平
C．骨骼、牙齿钙化基本完成
D．男孩出现遗精，女孩月经初潮发生
E．以上都不对
参考答案：B
解析：发育成熟指生长和发育达到完备，机体在形态、生理、心理上全面达到成人水平，具备生殖养育下一代的能力。
| 补全对话。根据对话内容，将方框内符合对话情境的句子抄写在对话空白处，使对话恢复完整。选项中有两项是多余的。 | |
| A: Hello, Jane! 1 B: Because l went to bed too late last night. A: 2 B: I watched a football match between two famous teams. A: 3 B: Yes, it was. But I was a little disappointed.A: 4 B: Because my favorite player nissed a good chance. He lost a goal. All his fans were very angry with him.A: But you shouldn't be angry with him. He must do his best. B: Yes, I think so. 5 A: I was lonely. My parents went to Beijing for an important meeting. I'm alone at home. B: Don't worry. I'll stay with you. A: rrhank you very much. B: You are welcome.
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