搜题请搜索小程序“爱下问搜题”
问题 填空题

生物分类等级从大到小依次为：______、门、纲、______、______、属、______．

答案

生物的分类单位从小到大依次是：种、属、科、目、纲、门、界．其中种是最小的单位，界是最大的单位．对生物进行分类是为了弄清生物之间的亲缘关系．

故答案为：界；目；科；种

阅读理解

  At school I have a good friend. He is an English boy. His name is Tom. He is twelve. We are in No. 10 Middle School. We’re not in the same class. He is in Class 4, Grade 1. I’m in Class 2, Grade 1. Tom’s sister is not a student. Her name is Jane. She is five. She is a nice girl. 

Miss Gao is my English teacher. She is thirty. Mr Wang is Tom’s Chinese teacher. He is thirty, too. They’re good teachers. 

根据短文内容, 判断下列句子正(T)误(F)。 

小题1:Tom is American. 

小题2: We aren’t in the same school. 

小题3: Tom is in Class Four, Grade One. 

小题4:Jane is Tom’s sister. 

小题5:Miss Gao is Tom’s English teacher.
查看答案
单项选择题

幕墙钢构件施焊后，其表面应采取有效的（）措施。

A.防水

B.防火

C.防腐

D.防雷击
查看答案