小明在网络中看到一段实验视频：实验人员用如下图所示装置进行实验，分别将水和氢氧化钠溶液（无色）挤入盛有氯气（黄绿色，有毒）的试管中，振荡后，观察到试管A中液体呈黄绿色，气体黄绿色变浅；试管B中   液体、气体均为无色，胶头滴管胶头变瘪。根据上述实验现象，不能得到的结论或推论是（   ）

同学们，当西方走向近代化的时候，中国也开始了艰苦的探索历程。回首过去，19世纪以来，中国在集聚动荡的社会环境中从经济、政治到思想文化和社会生活，开始了一系列深刻的变革。某班同学以近代化为主题进行探究活动，请你也参与到他们的活动中来。

    It's Sunday morning. There are many people in the park, some boys are playing basketball. There are some girls under a big tree. They're singing and dancing. What are those women doing? They are drinking tea. Look at the woman in a blue coat. Who's she? She's my mother. She is talking to Edward. Edward is her student. He is a good student. He studies hard. He's good at all the subjects. And he's friendly to all his teachers and his friends.