百队千班“四无”活动中，“四无”指的是什么？

—Hey, who’s that man over there? He    us since we came in.

—The one by the door? I don’t know. He looks like a lawyer or something, not a journalist. Perhaps he      here to look round, like us.

A．has watched；only came

B．is watching；had only come

C．has been watching；has only come

D．had been watching；came

配送中心设置在接近顾客的地方，在接到顾客的订货后提供及时的供货，而且可以一次满足多品种的订货。

乳腺癌侵犯 * * 悬韧带(Cooper韧带)引起的相应体征是

A．局部水肿

B． * * 内陷

C．肿瘤表面皮肤凹陷(酒窝征)

D．橘皮样变

E．铠甲状胸壁

实证的呃逆证候类型有（）

A.胃中寒冷

B.胃火上逆

C.气机郁滞

D.胃阴不足

E.脾胃阳虚

花材的固定