问题 单项选择题

教授:如果父母都是。型血,其子女的血型只能是O型,这是遗传规律。学生:这不是真的,我的父亲是B型血,而我则是0型血。学生最有可能把教授的陈述理解为:()

A.只有。型血的人才会有。型血的孩子

B.O型血的人不可能有B型血的孩子

C.B型血的人永远都会有。型血的孩子

D.如果父母都是B型血,其孩子也会是B型血

答案

参考答案:A

解析:学生回答中以为老师断定了一个必要条件的命题,以为只有父母都是O型血其子女才是0型血这样该学生才能反驳道:我父母不是0型血可我也是0型血。但是,教授做出的仅仅是一个充分条件的命题,并不是必要条件命题。学生误解了老师的观点。

单项选择题
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I had been to several doctors as a child, but I have a special place in my heart for Dr. Vincent. He was a Pediatric Cardiologist at UCLA back in 1971 who saved my life. I was eight years old at the time with a severe heart problem and I needed heart surgery. My Mom did not have the money, and without the surgery there was a real good chance I would not live to be thirteen years old. After contacting several organizations Dr. Vincent was able to get financial help for me through United Way, a Crippled Children’s Organization.

Dr. Vincent was a handsome man; he was also very gentle and caring. I remember being in the hospital for an Angiogram test, and during the procedure I was crying terribly, so the medical staff called in Dr. Vincent to calm me down, and he was able to comfort me when no one else could. Then the time came for me to have heart surgery; there was a fifty- percent chance that I would not make it through the surgery because it was experimental. At the time I was only the second or third person to have this procedure done. I was absolutely terrified, and again Dr. Vincent reassured me he would see to it that everything would be all right.

I had a lot of confidence and trust in Dr. Vincent; He came to see me after the surgery, which was extremely painful but very successful, and brought me a stuffed animal. I was so surprised to get this gift from Dr. Vincent; I gave him a hug. I guess Dr. Vincent must have known I was feeling very lonely and scared. You see, I had no family or friends visit me while I was in the hospital except for my Mom, and I am not sure why. I do know one thing; I had a wonderful doctor who took the time to help a scared little girl who felt all alone.

This was twenty eight years ago, so wherever you are Dr. Vincent, I want to thank you for not only saving my life, but you helped me live a normal productive life, and for showing me that you truly cared, for that I will be eternally grateful to you.

小题1:Why did Dr. Vincent have a special place in her heart? Because________.

A.Dr. Vincent was handsome

B.Dr. Vincent was caring and kind

C.Dr. Vincent carried out the operation.

D.Dr. Vincent offered the money the operation needed.小题2:Dr. Vincent was called in during my test to ________________.

A.feed her

B.comfort her

C.scare her

D.have the surgery.小题3:Which of the following is true except ___________.

A.the operation was experimental.

B.she didn’t trust in Dr. Vincent

C.the operation would be extremely painful

D.she felt scared and all alone小题4:How did Dr. Vincent get the money for the operation?

A.He collected it in the hospital.

B.He saved the money day by day

C.He got help from an organization.

D.He borrowed the money from his friends