单项选择题

A．It takes a longer time to melt.
B．It is lighter to carry.
C．It is cleaner to use than ordinary ice.
D．It is not so cold as ordinary ice.
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What is the opinion of British authorities concerning speeding laws
单项选择题
A．He must meet his teacher.B．He must attend a class.C．He must go out with his girlfriend.D．He must stay at school to finish his homework.
A．He must meet his teacher.
B．He must attend a class.
C．He must go out with his girlfriend.
D．He must stay at school to finish his homework.
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