单项选择题

According to American federal government, residents of Hawaii have the longest life ______: 77.2 years.

A．rank
B．scale
C．span
D．scope
<上一题 目录 下一题>
热门 试题

单项选择题
They stayed up late trying to ______ out a way to solve the problem.
A．let
B．give
C．knock
D．figure
单项选择题
When a psychologist does a general experiment about the human mind, he selects people ______ and asks them questions.
A．at random
B．at will
C．at length
D．in essence
相关试题