下列不符合白头粉刺的是()
A.又叫封闭性粉刺
B.毛囊开口不明显
C.毛囊口明显扩大
D.不易挤出脂酸
E.愈后不留瘢痕
参考答案:C
Tom, Jack and Rose were named as assistant professors. Believe it or not, ______ three of them were of ______ age.
A.不填; an
B.不填; the
C. the; an
D. the; the
高速铁路隧道内应设置安全空间,安全空间应设在距线路中心处()以外。
A、1.0m
B、2.2m
C、3.0m
D、4.0m