单项选择题

A．Another class of fires.
B．Another type of extinguishers.
C．How fires break out.
D．How fires can be prevented.
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单项选择题
A．To tell us that accidents may take place at any time.B．To prove that it is wise to spend money on insurance.C．To prove that buying insurance is a wasted investment.D．To tell us that the sense of security is very important in driving.
A．To tell us that accidents may take place at any time.
B．To prove that it is wise to spend money on insurance.
C．To prove that buying insurance is a wasted investment.
D．To tell us that the sense of security is very important in driving.
单项选择题
A．Wheal it breaks out.B．How it comes about.C．What kind it is.D．Where it takes place.
A．Wheal it breaks out.
B．How it comes about.
C．What kind it is.
D．Where it takes place.
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