单项选择题

Leaves are not distributed accidentally on a plant stem, but are arranged in a very precise way that assures them the maximum light.

A．dangerously
B．densely
C．randomly
D．linearly
<上一题 目录 下一题>
热门 试题

单项选择题
The members of Aaron Burr’s family were noted for their passionate and headstrong temperament.
A．intellectual
B．stubborn
C．witty
D．steadfast
单项选择题
Sedimentary rocks cover much of the Earth’s surface, but they are often hidden by a thin veneer of soil.
A．concealed
B．eroded
C．protected
D．softened
相关试题