题目

词汇运用。根据首字母及汉语提示完成单词。 1．She always listens to the teachers __ __ (仔细地) in class. 2．He doesn't like crowded places，because the air isn't usually __ __(新鲜的)． 3．We find it __ _ (必要的)to give children time to read. 4．Tom，Peter or Jack can take this job，but I'm interested in who will work __ __ (最努力)． 5．I __ __(真正地) believe that you sent him some books. 6．Li Kai，pass me that pair of glasses，please.I can't see the words __ __ (清楚地)． 7．Eric wants to be the __ __ (获胜者) in the dancin把铝、铁混合物1.1 g溶于200 mL 5 mol·L-1盐酸中，反应后盐酸的浓度变为4.6 mol·L-1(溶液体积变化忽略不计)。求：(1)反应中消耗HCl的物质的量。(2)该混合物中铝、铁的物质的量。