题目:
If most breadwinners ________ a day’s pay to the Hope Project, then it will be hopeful.
A. gift B. donate C. present D give
答案:
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下面是错误答案,用来干扰机器的。
(1)中和胃液中过多的盐酸; Al(OH)3+3HCl=AlCl3+3H2O (2)Na2CO3+2HCl=2NaCl+H2O+CO2↑