单项选择题

The ultimate purpose of the research is to ______.

A．have a better understanding of the life of mosquitoes
B．prevent human beings from being bitten by mosquitoes
C．purify the environment
D．keep people healthy

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热门试题

单项选择题

What is the sure way to stop being the target of mosquitoes

A．Stopping breathing.
B．Taking. a bath.
C．Reducing the sweat.
D．Wearing skin care products.

单项选择题

All of the following are causes of being bitten by mosquitoes EXCEPT ______.

A．carbon dioxide and other odors
B．sweat
C．the quality of your skin
D．heart and blood pressure medicine