搜题请搜索小程序“爱下问搜题”
问题 选择题

实验室中过滤常常是为了

A．制取物质

B．分离提纯

C．获得滤液

D．获得滤渣

答案

答案：B

过滤的目的是为了除去溶液中的难溶性杂质，是物质分离提纯的一种方法，所以答案选B

辨析题

有人认为，自信者总有点自负，自负是自信的一种表现。你同意这种现点吗？说说你的理由。 

                                                                                                                                                               

                                                                                                                                                               

                                                                                                                                                              

                                                                                                                                                               

                                                                                                                                                               

                                                                                                                                                               

                                                                                                                                                               

查看答案
单项选择题

临床上用于确诊疟疾的实验室检查方法为

A．血和骨髓涂片检查

B．间接荧光抗体检测

C．间接红细胞凝集试验

D．酶联免疫吸附试验

E．外周血检查大单核细胞
查看答案