皮皮学，免费搜题
登录
搜题
【简答题】
书本P99(习题1,3,4,7)(练习本做完上交批改,上传批改后的那页有成绩即可)
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】-Has Tommy finished his homework yet? -I have no idea; he ____ it this morning.
A.
was doing
B.
had been doing
C.
has done
D.
did
【简答题】充电设施既可以安装于( ),也可以安装在( )
【简答题】（1）由硫酸钾、硫酸铝和硫酸组成的混合溶液中，c（H + ）=0.1 mol?L -1 ，c（Al 3+ ）=0.4 mol?L -1 ，c（SO 2-4 ）=0.8 mol?L -1 ，则c（K + ）为______ （2）标准状况下，将33.6L的NH 3 溶解于水配成2L的溶液，则溶液的物质的量浓度为______mol/L （3）标准状况下，若aL NH 3 中含有的氢原子数为b，则阿伏加德...
【单选题】--- Tommy has just won the first prize in the oral English competition. --- ______ he was so excited this afternoon.
A.
No wonder
B.
It is happy that
C.
It is clear that
D.
No strange
【简答题】The work ______ early next morning. A) has to be finished B) has to finish C) will finish D) is finished
【简答题】Tommy is looking for ______ in the cinema. He has drunk too much water . A B C D
【简答题】（1）含0.4mol Al 3+ 的Al 2 （SO 4 ） 3 中所含的SO 4 2- 的物质的量是______． （2）已知16g A和20g B恰好完全反应生成0.04mol C和31.76g D，则C的摩尔质量为______． （3）如果a g某气体中含有的分子数为b，则c g该气体在标准状况下的体积是（阿伏加德罗常数用N A 表示）______．
【单选题】— Have you seen Tommy, Rose? — No, I think he ________ America. [ ]
A.
has been to
B.
has gone to
C.
has been in
D.
went to
相关题目：
参考解析：
知识点：
题目纠错 0
发布
