关于鼻咽部血管纤维瘤的描述，下列哪项正确（） A.是有包膜的血管性肿瘤 B.是无包膜

My name is Jim White. I live in America. I had a very u __小题1:__ experience on Sunday. I s___小题2:___a UFO in the daytime. Early this spring, I went outside w___小题3:___ my friend Bill who lived close to me. We were walking to a hill when I saw a l___小题4:___ bright light dancing in the sky. I called Jim and asked him to look up. He kept a___小题5:___, “What is that?” “A UFO!” I shouted excitedly. I n__小题6:__ it was round and red in the center.

After we looked at it for a m__小题7:__, we found it seemed that it had wings, but it was still round. Bill would not b__小题8:___ me when I told him it must be a UFO. We shouted t__小题9:__ it and we wished that it would land. We wanted to know i__小题10:_ there was an alien in it. But soon it disappeared. I guessed we scared it off.

Do you believe me? It’s a true story.

使用中消毒剂与无菌器械保存液采样时间为

A．更换前

B．使用中

C．更换后

D．原消毒液

E．以上都是

中年女性，右腋下淋巴结活检为转移癌，右乳有1.0cm×0.8cm低回声结节，边界不整，但衰减明显，它最可能是哪一种乳腺癌（）。

A. * * 状癌

B.髓样癌

C.黏液癌

D.硬癌

E.未分化癌

新药

浸出毒性的水平振荡法，浸出采用的容器是（）

A.聚乙烯瓶

B.玻璃瓶

C.棕色试剂瓶

D.广口瓶