Mr and Mrs Green come from Australia .They are in Beijing now .Mr Green is a teacher in a high school .He teaches English ,He likes reading and running .His son, Jim, is a  student.He likes playing football very much .He likes school, too. He does his homework every day . Mrs Green is a teacher ,too. She can speak a little Chinese. She likes Chinese food .She doesn’t like doing housework at all, but she likes cooking .They all like China a lot.

小题1:Mr and  Mrs Green come from _______

A．Canada

B．America

C．Australia

D．English小题2:______likes running.

A．They

B． Tom

C．Mrs Green

D．Mr Green小题3:________ can speak a little Chinese.

A．They

B． Tom

C．Mrs Green

D．Mr Green小题4:Mrs Green doesn’t like _______at all.

A．Chinese food

B．teaching

C．doing housework

D．cooking小题5:They all like ______very much.

A． China

B．Chinese people

C．playing

D． school

免疫分析实验中准确度系指（）

A.稳定检出待测物质的最低浓度

B.重复分析的结果皆接近于平均值

C.只测量特定物质

D.测定值与真值的接近程度

E.确定抗干扰性