赞题库-背景图
单项选择题

A．challenge
B．threat
C．problem
D．temptation
<上一题 目录 下一题>
热门试题

单项选择题A．lookedB．viewedC．receivedD．perceived

A．looked
B．viewed
C．received
D．perceived

单项选择题A．althoughB．lestC．unlessD．since

A．although
B．lest
C．unless
D．since