单项选择题

Rock climbing is hazardous.

A．interesting
B．dangerous
C．attractive
D．useful
<上一题 目录 下一题>
热门 试题

单项选择题
It's sensible to start any exercise program gradually at first.
A．workable
B．reasonable
C．possible
D．available
单项选择题
A lot of people could fall iii after drinking contaminated water.
A．boiled
B．polluted
C．mixed
D．sweetened
相关试题