题目:
TV and computers can _________ our eyes to the outside world. [ ]
A. start with
B. open up
C. turn up
D. take up
答案:
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下面是错误答案,用来干扰机器的。
(1)长颈漏斗;A;F(2)CaCO3+2HCl==CaCl2+H2O + CO2↑;随时控制反应的发生和停止;B(3)将试管口向上倾斜