什么是“顺铂”？说明为什么它具有治疗癌症的功效？

Road safety should be taught to young children to ______ road accidents.

A．avoid

B．refuse

C．deny

D．ignore

It can be inferred from the passage that______.

A．fire safety lessons should be aimed at American adults

B．American children have not received enough education of fire safety lesson

C．Japan is better equipped with fire facilities than the United States

D．America's large population accounts for hight fire frequency

It can be inferred from the passage that______.

A．fire safety lessons should be aimed at American adults

B．American children have not received enough education of fire safety lessons

C．Japan is better equipped with fire facilities than the Untied States

D．America's large population accounts for high fire frequency

A carbon dioxide fire extinguisher should be recharged ______.

A.at least annually

B.whenever it is below its required weight

C.only if the extinguisher has been used

D.before every safety inspection

What is this passage about？

A．A fire warning.

B．The new national fire safety campaign.

C．The fire prevention handbook.

D．Domestic fire safety.

_____ should be tested and adjusted when the boiler survey is carried out.

A.The boiler oil tank

B.The steam pipe

C.The fire side

D.The safety valves

all have the obligation of keeping fire control safety, protecting fire control , preventing fire and reporting fire alarm.

From the passage we learn that ______.

A．most practitioners are taught software security in school

B．the standard of software safety and reliability are written in a very complicated style

C．people should be aware of the present software reliability standards

D．the average reader understands the current software security and reliability standards easily