指示标志是什么?
参考答案:
指示车辆和行人按规定方向、地点行进的标志。蓝底、白色图案。形状为圆形和矩形。
Whether the buildings in this area should be pulled down has remained ______, people are still looking
for other possible solutions.[ ]
A. unchallenged
B. relevant
C. controversial
D. contradictory
男性,31岁,不规则发热、咳嗽半年,间断腹泻,大便无脓血,病后体重由71kg降到70kg,3年前曾到非洲工作,一年前回国,诊断该病的实验检查是()
A.检测抗HIV
B.取血分离HIV
C.胸部X线片
D.大便培养
E.查血疟原虫