单项选择题

By conducting experiments on brave volunteers, Walter Reed was able to identify the particularkind of mosquito that carried yellow fever.

A．thin
B．hearty
C．curious
D．courageous
<上一题 目录 下一题>
热门 试题

单项选择题
Dating from around A. D. 1000,the largest mound surviving from the Mississippian culture was one hundred feet high and had a base of nearly fifteen acres.
A．civilization
B．formation
C．sect
D．edifice
单项选择题
Nashville, Tennessee, boasts some of the finest country music performers in the United States.
A．plays
B．attracts
C．records
D．claims
相关试题