全冠修复体太薄，力过于集中可能导致（） A．松动、脱落 B．变色 C．穿孔、破裂 D

读一读，根据短文选择答案。

      Today is Sunday. My father and my mother don't go to work. They come to the zoo with me.

      We see many animals. Look, birds have beautiful feathers, the elephant has a long trunk, tigers have many

black stripes. Monkeys are playing on the hill. The monkeys are very funny (有趣). We look at them and they

look at us. We give them some bananas, they are happy, and we are happy, too.

1. Today is ___________.

A. Saturday

B. Sunday

C. Monday

2. ___________ have beautiful feathers.

A. Birds

B. Tigers

C. Monkeys

3. ___________ have many black stripes.

A. Birds

B. Tigers

C. Monkeys

4. Monkeys are ___________, and we are ___________, too.

A. sad; happy

B. happy; sad

C. happy; happy

通过显微技术破坏玉米根尖分生区细胞中的高尔基体。培养几天后，再观察该根尖细胞，预测会有什么样的结果[ ]

A．细胞停止分裂

B．产生多核细胞或多倍体细胞

C．正常分裂

D．不能形成纺锤体

肺痈成痈期的病理是（）。

A.热壅血瘀

B.热伤肺气

C.肉腐血败

D.热毒留恋

E.风热袭肺

根据超声图像，该病例最可能的诊断（）

A.肾上极囊肿

B.肾脏积水

C.肾脏肿瘤

D.重复肾

E.肾脓肿

患者女性，45岁。3个月前无意中发现左侧 * * 有一小指头大小的无痛性肿块，近1个月来肿块逐渐增大，故来院就诊。体检：左侧 * * 可扪及一3cm×2cm大小的肿块，边界不清，表面不甚光滑，活动度尚可；患侧 * * 内陷(为近期出现)；同侧腋窝可扪及2个散在、可推动的淋巴结。初步怀疑为乳癌。

上述患者乳癌根治术后，为预防皮下积液及皮瓣坏死的主要措施是

A．半卧位

B．加压包扎伤口

C．抬高同侧上肢

D．局部沙袋压迫

E．引流管持续负压吸引