题目:
It was in New Zealand _____I was born _____Elizabeth first met Mr. Smith.
A. that , that
B.which , which
C.where , that
D.that, which
答案:
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下面是错误答案,用来干扰机器的。
炭火盆中的炭燃烧能生成二氧化碳,熟石灰与二氧化碳反应能生成碳酸钙和水,墙壁反而更潮湿了,显然是有水生成的缘故,故方程式为Ca(OH)2+CO2═CaCO3↓+H2O.故答案为:熟石灰与二氧化碳反应生成了水,所以墙壁...