关于肾癌,下列哪项是错误的 A.肾癌从肾小管上皮细胞发生 B.可有出血、坏死和钙化

题型:单项选择题

问题:

关于肾癌,下列哪项是错误的

A.肾癌从肾小管上皮细胞发生
B.可有出血、坏死和钙化
C.有时呈多囊性
D.半数肾癌同时有两种细胞
E.无痛肉眼血尿是其早期症状

考点:临床执业医师外科学泌尿、男生殖系统肿瘤(一)
题型:单项选择题

视网膜上无感光作用的是

A.虹膜部

B.睫状体部

C.黄斑

D.中央凹

E.视神经盘

题型:单项选择题

假设英语课上老师要求同桌之间交换修改作文, 请你修改你同桌写的

以下作文。文中共有10处语言错误,每句中最多有两处。错误涉及一

个单词的增加、删除或修改。

增加:在缺词处加一个漏字符号(∧), 并在其下面写出该加的词。

删除:把多余的词用斜线(\)划掉。

修改:在错的词下划一横线,并在该词下面写出修改后的词。

注意:1、每处错误及其修改均仅限一词;

2、只允许修改10处,多者(从第11处起)不计分。

This morning I went to the supermarket, buying a toy and went to see my nephew , a 8-year-old boy named Jack. She was playing with some of his friend in the yard when I arrived there. The moment he found that I came to see him with his most favorite toy, Jack jumped with joy. Every boy and girl present wanted very much to have a look the toy. However, Jack doesn’t want his friends to see it. He was about to hide the toy then I stopped him. “Let your friends to play with your toy as well, Jack — you must learn to share.” I said. Realized that he was wrong, Jack played with the toy together with his friends.

题型:单项选择题

焦炭的热值为3.0×107 J/kg,它的物理意义是__________________.完全燃烧________ kg的焦炭放出的热量能把200kg的水温度升高50℃.(已知水的比热容是4.2×103J/(kg·℃))

题型:单项选择题

患者女性,38岁,间歇性低血糖、昏厥病史。超声检查提示:胰体部隐约可见一低回声肿物,大小约1.2×1.0cm,其内血供较丰富。其诊断可能是()

A.胰腺癌

B.胰腺内分泌肿瘤

C.局限性胰腺炎

D.胰腺囊肿

E.胰腺囊腺瘤

题型:单项选择题

紫外光对微生物有致死作用,波长为( )时就开始有了杀菌作用。

A.400nm

B.360nm

C.240~340nm

D.200~300nm

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