单项选择题

According to the author, gun control laws _______.

A．could not help to catch the outlaws
B．are the essentials to reduce murder rates
C．could prevent criminal from getting guns
D．could only control the people abiding laws

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热门试题

单项选择题

According to the passage, genetically-modified foods _________.

A．are superior to naturally grown foods
B．might prove to be risky to human health
C．are going to replace naturally grown foods
D．can solve the food problems in developing countries

单项选择题

The passage mainly deals with _________.

A．the world's food problems
B．the new-advancement in biotech
C．the characteristics of genetically modified foods
D．how biotech can help solve the world's food problems