Which one belongs to chronic inflammation() A: London smog incident B: asthmatic attack C: Photochemical smog incident D: Bphopal disaster

Which of the following words is formed by means of blending? A: expo B: OPEC C: smog D: daydream

Through the effects of smog-which is a mix正确 of smoke fog.

Exposure to higher levels of smog can cause health problems , which one is not included? A: appendicitis B: asthma C: heart disease D: lung cancer

For London, the disaster was the Great Smog of ( ).

2. What words the blend smog are formed？

They are at the end of their food . A: supply B: smog C: media D: pressure

We learn from the third paragraph that ______. A: London was plagued with rats in the 1950s B: London is covered with smog today C: London was polluted by smog in the 1950s D: Los Angeles is as heavily polluted today as London was in the 1950s

What words the blend smog are formed？ A: smoke+log B: smoke+fog C: smike+fog D: smike+log

Which of the following statements is true about the results of the smog in London? ( ) A: Londoners only saw black air. B: Ambulances had to transport more sick people to hospital. C: Quite a number of people were hospitalized. D: All transport except trains had to stop.