夏天被蚊虫的叮咬时，用（）可以迅速止痒。A、盐 B、醋 C、酱油 D、浓肥皂

Today is Sunday, March 20. We, sixteen boys and seventeen girls, go to school early, but we have no lessons. Our teacher takes us to the zoo. We are very excited about the trip. We get on a bus, it goes fast and at half past nine we get there. How beautiful the zoo is! There're a lot of trees, some hills, and a big lake. The sun is shining and the flowers are coming out. There are all kinds of animals in it, elephants, monkeys, birds, fishes and many other animals. The birds are singing in the trees and the fishes are swimming in the lake. We like to watch monkeys. They are playing on the hill or having oranges, apples and bananas. There are many rules in the zoo. We mustn't do this and we mustn't do that. But we all have a good time. At one in the afternoon we leave the zoo. 

小题1: The weather is ______ today

A．sunny

B．cloudy

C．rainy

D．windy小题2: _______ students and a teacher go to the zoo by bus

A．Sixteen

B．Seventeen

C．Thirty-three

D．Thirty -four小题3:We stay in the zoo for ____ hours.

A．four and a half

B．three and a half

C．four

D．five

甲乙两块棉田，平均亩产185斤，甲棉田是5亩，亩产203斤，乙棉田亩产170斤，乙棉田有（    ）亩。

女性患者，36岁，反复出现下肢水肿，蛋白尿3年，一直服用泼尼松30mg/d治疗，最近3天因受凉后出现咽痛、发热、咳嗽，住院发现双下肢膝以下高度水肿，尿蛋白（++++），红细胞0~3/HP，并加大泼尼松至60mg/d，晨顿服，且加用环磷酰胺0.2g，静脉点滴，隔日1次，进院后第4天患者感尿频、尿急、尿痛，查尿常规：白细胞（+++），加用头孢唑林（先锋V号）静脉滴注，第5天出现水肿加重，尿量300ml/d，尿素氮20mmol/L，血肌酐987mmol/L，并有心悸、气促感，查体心率110次／分，双肺湿啰音，BP165/110mmHg，即做紧急血透，血透3小时后气促好转，水肿缓解，但回病房后排出红色尿100ml，镜检红细胞（+++），为均一型血尿。

该患者血透后出现血尿的可能原因是（）

A.心衰引起

B.肾实质损害加重

C.与血压升高有关

D.与血透时肝素用量过大有关

E.与使用环磷酰胺有关

6个月婴儿，发热、咳嗽伴流涕3天，咳嗽加重1天伴喘息，呈阵发性发作。查体：面部湿疹，呼吸急促，60次/分，满肺哮鸣音，余无异常。以往无类似发作，其父患严重支气管哮喘。外周血常规基本正常范围。胸片呈间质性改变伴肺气肿。

经对症治疗，患儿症状缓解，肺部哮鸣音消失。9个月时再次喘息发作肺部哮鸣音，胸片呈间质性改变。此时的诊断应为（）

A.异物吸入

B.间质性肺炎

C.支气管哮喘

D.毛细支气管炎

E.病毒相关性喘息

下列哪项说法是正确的( )

A．投资者投资证券以盈利为目的，因此，在制定投资目标时，不必考虑亏损的可能

B．组建证券投资组合时，投资者要注意个别证券选择、投资时机选择和多元化三个问题

C．投资组合的修正实际上是前面几步投资过程的重复，可以忽略不做

D．基本分析是用来解决“何时买卖证券”的问题