单项选择题

Pine trees, of which them am almost one hundred ______, are found throughout the North Temperate Zone.

A．species
B．differences
C．similarities
D．standards
<上一题 目录 下一题>
热门 试题

单项选择题
If you don't ______ the children properly, Mr. Chiver, they'll just run riot.
A．warrant
B．supervise
C．mobilize
D．manipulate
单项选择题
______ his sister, Jack is quiet and does not easily make friends with others.
A．Dislike
B．Unlike
C．Alike
D．Liking
相关试题