单项选择题

The survey showed that ______ numbers of 15-year-olds were already smoking twenty cigarettes a week.

A．essential
B．steady
C．primary
D．substantial
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单项选择题
The badly wounded soldiers take ______ for medical treatment over those only slightly hurt.
A．priority
B．measures
C．chance
D．responsibility
单项选择题
Proper clothes ______ for much in business. That' s why you see most business people dress formally.
A．count
B．account
C．allow
D．care
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