下列对启事表述准确的是()。
A.一则启事只能告启一件事情
B.启事对公众没有约束性
C.启事可以公开发布
D.机关团体个人均可发布启事
参考答案:B, C
A tremble of fear came over him ________his eyes wandered in the direction of the grey object in the shadow.
A.at every time
B.every time
C.every time when
D.every time that
二期梅毒以皮肤粘膜损害为主,其皮肤损害可呈()
A.斑疹
B.丘疹
C.斑丘疹
D.脓疱疹
E.以上皮损都可有