单项选择题

One may assume from this article that

A．pigs have remained unchanged for centuries
B．pigs are naturally vicious animals
C．pigs make a significant contribution to modem life
D．pigs are better than any other animal for laboratory

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热门试题

单项选择题

The expression hog-wild means ______.

A．untamed
B．unclean
C．untouch
D．untrue

单项选择题

Which of the following is the author's view on the historical development of toys

A．The craftsmanship in toy-making has remained essentially unchanged.
B．Toys have remained basically the same all through the centuries.
C．The toy industry has witnessed great leaps in technology in recent years.
D．Toys are playing an increasingly important role in shaping a child's character.