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问题 单项选择题

以下关于肺动脉高压的分级，不正确的是（）

A.轻度26～35mmHg

B.轻度15～25mmHg

C.中度36～45mmHg

D.重度>45mmHg

E.重度肺动脉收缩压与体动脉收缩压比值大于0.80

答案

参考答案：B

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
小题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
小题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
小题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.
小题4:You’d better take _____ for the sightseeing in Trip 2.
A. a sun hat                B. a digital camera       C. warm clothes
小题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

万用表判别三极管管脚，当用红表笔接触被测管的一个管脚，黑表笔依次接触另外两个管脚时，测得阻值一个为高阻，一个为低阻，则红表笔所接的电极为（）。

A、基极

B、集电极

C、发射极

D、不能确定
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