同辈领导
参考答案：是指成员间产生一位领导者来带领其他成员。
More than 200 million people in China suffer high blood pressure, and 70% of them are unaware of the
fact ______they have the illness.[ ]
A. what
B. when
C. how
D. that
南京地铁一号线车门障碍物探测试块的外形尺寸为（）
A.25×60mm
B.20×40mm
C.25×38mm
D.25×36mm
