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问题 选择题

下 * * 角形中，是直角三角形的是[ ]

A.三角形的三边满足关系a+b=c

B.三角形的三边比为1∶2∶3

C.三角形的一边等于另一边的一半

D.三角形的三边为9，40，41

答案

答案：D

阅读理解
阅读理解。
     What is your wish for the New Year? The following is some children's ideas.
John: I wish to be a better boy to Mum and listen to her more. I also want to get better grades in school.
Kate: My wish is to change my school as there's too much to study in this school.
Ann: I wish I could spend more time with Mum. She should stop working at the bank and take up a job
at our neighborhood toy shop.
Peter: I wish someone would find a way to help me walk with my only leg, so I can take part in activities 
         and sports that I'm unable to do now.
Mary: I wish that I could save all my money, so I could buy presents for my mother, father and big sister
         on their birthdays.
Bob: I wish for good health though I'm badly ill. I want to finish high school and take an IT course after.
Mark: I wish I could get more money to fix our house. There is a big hole in the wall and big mice run
         inside the room.
1. How many children have mentioned their parents in the passage?
A. All.
B. Four.
C. Three.
D. None.
2. Who is badly ill among the children?
A. Kate.
B. Peter.
C. Mary.
D. Bob.
3. What's Mark's wish?
A. To get better grades.
B. To change his-school.
C. To buy some presents.
D. To fix their house.
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单项选择题

女性患者，55岁，近3个月来出现胸骨后疼痛，伴有反酸、烧心、嗳气，症状常于进食后或平卧时加重，1周来疼痛症状加重。

为进一步确诊应首选哪项检查

A．24h食管pH监测
B．胃镜+组织活检
C．食管吞钡X线检查
D．超声内镜
E．食管滴酸试验
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