题目内容

23、The disease,       , could spread very fast.

A.unless well controlling                                 B.if not well controlled

C.when not to control                                    D.although not being well controlled

试题答案

23、B

相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网