血压无明显变化的输血反应是（）。 A.过敏性反应 B.非溶血性发

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问题单项选择题 A1/A2型题

血压无明显变化的输血反应是（）。

A.过敏性反应

B.非溶血性发热反应

C.细菌污染反应

D.急性溶血反应

E.循环超负荷

答案

参考答案：B

解析：非溶血性发热反应时一般血压无明显变化。过敏性反应严重可引起过敏性休克，表现血压降低；细菌污染反应可引起感染性休克，血压降低；急性溶血反应可引起低血容量休克表现血压降低。循环超负荷血压可升高，发生心源性休克后则血压降低。

阅读理解

阅读理解。

                                  Some Suggestions on Travel
      Forget about fashion. Always wear your most comfortable clothes when going
on long journey.
     Traveling on trains and buses can be boring, so take a good book to read.
     If you're going somewhere cold, remember to take your warm clothes.
     If you are going somewhere sunny, remember to wear sunblock (防晒霜) and
sunglasses.
     Always take a camera with you to capture those special moments.
     Be careful with your things whenever you go to busy places, like a train station. There are often thieves there!
     Always leave room in your bag for presents.
     Most countries have lower prices for students, so if you have one, take your
student card with you and save money.

1. If you go to Hainan Island for a trip in summer, you should take _______ with you.

[ ]

A. warm clothes and sports shoes
B. sunglasses and sunblock
C. fashionable clothes and a big bag
D. some fruit and drinks.

2. According to the passage, _______ is a good way to keep away from boredom (无聊) while you are
on a train or a bus.

[ ]

A. taking a camera
B. reading a good book
C. listening to music
D. sleeping for some time

3. You must always _______ while you are at some busy places because there are often thieves there.

[ ]

A. take your things away
B. look after your things well
C. give your things away
D. get your things ready

4. If a student wants to buy some presents at lower prices while traveling, he should show _______ to
the shop assistant.

[ ]

A. his ID card
B. his name
C. his passport
D. his student card