换热器的管束两端的管板是与壳体焊接在一起的称作（）换热器。A_爱下问搜题

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问题单项选择题

换热器的管束两端的管板是与壳体焊接在一起的称作（）换热器。

A、U形管式

B、固定管板式

C、浮头式

D、套管式

答案

参考答案：B

阅读理解

阅读理解。

                          Things You Can Do to Help the Environment
CARS
     Cars are getting bigger. Bigger cars burn more gas and increase problems with air pollution.
So try to walk, ride, or take buses or subways. And if you drive a car, keep it in a good state.
This can save gas and make less pollution.
Energy
     The biggest use of home energy is for heating and cooling. So turn up your air conditioned
and ,um down the heat, especially at night. Use energy-saving lights. And remember to turn
lights off.
PRODUCTS
     Each American throws away 10 kilograms of litter everyday. Try to make less waste. Ask
yourself before you buy something: Do I need it? Buy products that you can use over and over
again.
WATER
     Showers use a lot of water. In one week, a common American family uses as much water
as a person drinks in three years! Take shorter showers or buy a special small showerhead.
This can cut water use in half.

1. Linda always takes long showers in the morning.
__________________________________________________
2. Jeff leaves the lights on at home all the time.
__________________________________________________
3. Nick buys a newspaper every day, but never reads it.
__________________________________________________
4. Gina drives to work, but her office is near her home.
__________________________________________________
5. This passage is most probably taken from _______________
A. a magazine
B. a news report
C. a diary

单项选择题

瘿病的视诊应注意以下几点除了（）

A.两侧是否对称

B.肿块位置、大小、形态

C.邻近血管是否充盈

D.是否红肿

E.是否随吞咽上下移动