单项选择题

The delegates seemed to lack confidence in______.

A．curbing the demand for dangerous drugs
B．destroying the process of distribution
C．establishing system for collecting information about drag abuse
D．persuading people not to take drugs

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单项选择题

According to the text the drug problem for the developing countries is the most serious because______.

A．they lack necessary fund to curb drug abuse
B．they are both producing and consuming countries of drugs
C．they are not efficient in their attempt to combat drug abuse
D．they have not enlisted support from developed countries

单项选择题

The word curb (Line 1, Para. 4) is closest in meaning to______.

A．confirm
B．control
C．combat
D．confront