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问题 单项选择题 A1型题

有关小儿艾滋病，下列哪些是错误的（）

A.剖宫产婴儿感染人类免疫缺陷病毒机会少

B.宫内感染是母婴间人类免疫缺陷病毒传播的危险因素

C.小儿艾滋病病例中约有三分之一是通过输血传染的

D.感染后的女婴较男婴的危险性高

E.血清抗体阳性的孕妇，其胎儿约90%可被感染

答案

参考答案：D

阅读理解
阅读理解。
Trip1 Luoji Mountain
     Bring your strong shoes for the hiking in a beautiful area of Luoji Mountain. You can find many
kinds of wild flowers in this area.
     Time: July 23~July 26              Tel: 3598432
     Adult: $120.00                         Child: $60.00

Trip2 Beihai Park
     This is a beautiful park with different kinds of plants. Take your digital camera and enjoy the great
sights here. It is a good place for fishing.
     Time: July 21~July 22              Tel: 3597543
     Adult: $20.00                           Child: Free

Trip 3 The Big Valley
     Put on your warm clothes, and come for a night walk along the Big Valley. Many of the animals
you will see on this trip can only be seen at night.
     Time: July 15~July 21               Tel: 3497243
      Adult: $180.00                         Not for children

Trip 4 The Beautiful Lugu Lake 
     Wear your sun hat and enjoy wonderful sunshine. You can take the boat to different islands for
sightseeing.
     Time: July 20~July 29               Tel: 3497432
     Adult: $200.00                          Child: $100.00
1. Nick has a vacation for 2 days. He can go _____.
A. hiking in the mountain
B. fishing in the park
C. swimming in the lake 
2. Mr and Mrs. King want to stay in Luoji Mountain with their seven-year-old son and eleven-year-old daughter. They need to pay _____ for the trip.
A. $240
B. $300
C. $360
3. Lily likes the animals which can only be seen at night. Which of the following is her best choice?
A. Trip 2.
B. Trip 3.
C. Trip 4.
4. You'd better take _____ for the sightseeing in Trip 2.
A. a sun hat
B. a digital camera
C. warm clothes
5. You should call _____ if you want to enjoy the sunshine in one of the trips.
A. 3497432
B. 3497243
C. 3597543
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单项选择题

CT轴位增强扫描时，在通过窦汇的层面，天幕呈（）

A."O"形

B."V"形

C."M"形

D."八"形

E."Y"形
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