题目

—Where's your brother?    —Oh, He         the library and         .     A. has been to; so Lucy is         B. has gone to; so Lucy has     C. has gone to; so has Lucy       D. has been in; so has Lucy 答案：C下列事实不能用勒夏特列原理解释的是(    )A.对盛在烧杯(敞口)内的氨水加热，氨水中浓度减小B.对石灰的悬浊液加热使温度升高，悬浊液中Ca(OH)2固体的含量增加C.高压有利于合成氨的反应D.500 ℃左右比室温更有利于合成氨的反应