阅读理解。 Summer holidays are coming soon. A

题型:阅读理解

问题:

阅读理解。
     Summer holidays are coming soon. Are you going to travel? If you plan to take a plane, you will have a
healthy trip by following these suggestions (建议).

1. Bring some needed medicines in your carry-on bag.
2. Don't leave your seat during the plane's take offs and landings.
3. To prevent blood clots (血流不畅):
★ 1______
★ Do leg-stretching (伸) exercises in your seat.
★ Wear comfortable clothes.
4. If you sometimes get airsick:
★ 2______ 
★ Keep your seat belt fastened (系好安全带).
★ Don't take small planes.
5. 3______  Don't take wine or alcohol (酒).
6. Use both hands when reaching overhead for something. 4______ 
A. This will help prevent yourself from getting hurt.
B. Better drink water or juice when you feel thirsty.
C. Get up and walk around every 60 to 90 minutes.
D. Ask for a window seat or a seat over the wing.
5. What's the best title for the passage?
A. A Plan for Summer Holidays.
B. Suggestions for an Interesting Trip.
C. Suggestions for a Healthy Air Trip.
D. Problems during an Air Trip.
考点:日常生活类阅读
题型:阅读理解

某站专用线使用液化气体罐车装运异丁烯(21020)1车。装车后,专用线货运员应做哪些工作?

题型:阅读理解

下列原理所测的中和热最接近-57.3 kJ/mol的是(  )

A.将标况下11.2L HCl气体通入50mL 0.01 mol/L NaOH溶液中反应

B.用55mL 0.01 mol/L Ba(OH)2溶液与50mL 0.01 mol/L HNO3溶液反应

C.用55mL 0.01 mol/L Ba(OH)2溶液与50mL 0.01 mol/L H2SO4溶液反应

D.用55mL 0.01 mol/L NaOH溶液与50mL 0.01 mol/L HF溶液反应

题型:阅读理解

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B.心力贮备
C.心室舒张末期容积
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题型:阅读理解

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题型:阅读理解

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