下列关于人口增长的说法，错误的是（　　）

塔里木盆地绿洲的水源主要来自（    ）

硫酸铜溶液是一种密度比水大的蓝色液体，在量筒中注入硫酸铜溶液和水，可以看到两种液体间有明显的分界面，经过一段时间后，界面变得模糊，最后量筒中液体变成了均匀的淡蓝色，这个实验说明了液体分子也在不停地做无规则运动．为了使实验现象得出的结果更具有可信度，在实验中应注意把硫酸铜溶液放在水的 ____（“上面”、“下面”）．如图，在两只相同的烧杯中注入这两种液体，硫酸铜溶液和水按等体积混和注入甲杯，按等质量混和注入乙杯，甲乙两杯混和后液体总体积相同（忽略体积变化），则混合液体的总质量m_{甲 ____}m_乙（填“＞”、“=”或“＜”下同），甲乙两杯混和液体的平均密度ρ_{甲 ____}ρ_乙．

阅读下列短文，从每小题所给的A、B、C、D四个选项中选出最佳选项。

     This week, I ask my students about fashion. I show each student seven things and ask their opinions(看法)about each thing. Some of their answers are interesting! Here is what the students in Class 8 like:

     Jodie Smith likes the key ring. Her friend Jordan says he can't stand (忍受)the scarf. “It's for old people!” He says. William Jones loves the wallet, and his classmate Gina Taylor loves the watch. Ann Rice doesn't like the watch, but she really likes the hair clip! Jerry Green likes the sunglasses. And the coolest thing is the belt! Everyone love it.