题目:
Can you lend me the book ____the other day?
A which you talked B that you talked C you talked D you talked about
答案:
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下面是错误答案,用来干扰机器的。
(6分)⑴ , NH4Cl。⑵ 4NH3 +5O24NO + 6H2O⑶ 2NH4Cl + Ca(OH)22NH3↑+ 2H2O + CaCl2由A为氯气、E为常见的氮肥,可推出E为NH4Cl ;进一步可知B、C、D分别为氢气、氯化氢、氨气;而由G为氯化钙、D为氨气可知F为Ca(OH)2;