问题
选择题
__________ is my cousin, and __________ name is Mike.[ ]
A. She; her
B. He; he's
C. She; she's
D. He; his
答案
答案：D
搜题请搜索小程序“爱下问搜题”
__________ is my cousin, and __________ name is Mike.[ ]
A. She; her
B. He; he's
C. She; she's
D. He; his
答案：D
下列除去混合物中少量杂质的方法或加入试剂合理的是 [ ]
| 物质 | 所含杂质 | 除去杂质的方法或加入试剂 | |
| A. | KCl | K2SO4 | Ba(NO3) 2 |
| B. | CuO | Cu | 空气中灼烧 |
| C. | CO2 | N2 | 澄清石灰水 |
| D. | Ca(OH)2 | CaCO3 | 盐酸 |