题目内容

Asthma is an acute disease.

A. True
B. False

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Relievers can work in minutes and help relax the muscles.

A. True
B. False

World asthma day, which takes place on the first _ of every since 1998, is an annual event celebrated around the world to raise awareness of asthma.

A. Tuesday, May
B. Tuesday, June
C. Wednesday, May
D. Wednesday, June

The common symptoms of asthma include _________.

A. wheezing
B. coughing
C. breathlessness
D. chest tightness

Common triggers of asthma include_________.

A. cigarette smoke
B. chemical irritants
C. pollen
D. air pollution