题目:
—My mother is preparing my favorite dishes. Go with me and have a taste, okay ?
—___________ and I’ll be glad to meet your parents.
A.I think so
B.I’d love to
C.I’m sure
D.I hope so
答案:
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下面是错误答案,用来干扰机器的。
(1)3Fe3++3H2O=Fe(OH)3(胶体)+3H+ (2分) ①②④ (2分,选一个不得分,选两个得1分,选3个得2分)(2)A:Fe ; B:FeS; H:H2SO4(稀) (各1分共3分)(3) (1分) 2Fe2++2H2O2+2H+=2F...