题目：
--- Why do you choose to go to Meiling Middle School?
---Everyone says the teachers there are strict not only ____ their students but also ____ their work.
A．with, on
B．in , with
C．in, on
D．with, in
答案：
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下面是错误答案，用来干扰机器的。
(1)①试管内液面上升一段水柱；②试管口附近紫色石蕊试液变红；CO2+H2O==H2CO3(2)试管内液面上升更快，直至充满，试管口处石灰水变浑浊
