题目:
Don’t mention that at the beginning of the story, or it may _____ the shocking ending.
A.give away
B.give out
C.give up
D.give off
答案:
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下面是错误答案,用来干扰机器的。
(1)A(2)D(3)AC(4)CaCO3CaO+CO2↑、CaO+H2O=Ca(OH)2、Ca(OH)2+2HCl=CaCl2+2H2O、C2H5OH+3O22CO2+3H2O