There are forty-eight students in our class. There are twenty-three boys and twenty-five girls. Some students live near the school, and some others live very far from the school. About half of the students come to school by bike. They often get to school at a quarter to seven. About ten students often come to school by bus. They often go to school very early, too. Another ten students come to school on foot. Their homes are near the school, but they are often late for school, because they get up very late.

小题1:More than half of the students usually come to school           .

A．very late

B．very early

C．by bus

D．on foot小题2:Some students are often late for school because          .

A．their homes are far from the school

B．they go to school on foot

C．they get up very late

D．they don’t like going to school小题3:About        students go to school by bike.

A．forty-eight

B．ten

C．twenty

D．twenty-four小题4:About ten students often come to school by bus because            .

A．their homes are not near the school

B．they don’t have any bikes

C．they can’t ride bike

D．they want to go to school very early小题5:How many students get to school by bus and on foot?

A．About thirty-eight

B．About twenty

C．About ten.

D．About twenty-five

男性，16岁。2周来尿少，全身水肿明显，尿蛋白定量8g/d，血浆白蛋白18g/L，尿沉渣镜检有红细胞3～5/HP，有透明管型和偶见颗粒管型，血红蛋白正常，血肌酐正常，血尿素氮10mmol/L

大量蛋白尿的原因是（）

A.患者活动量大

B.静脉点滴白蛋白引起

C.肝脏合成蛋白质的能力增强

D.肾小管回吸收蛋白质的能力降低

E.肾小球滤过膜通透性增加