癌症是严重威胁人类健康的疾病之一,下列与此相关的叙述中不正确的是[ ] A.原癌

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问题:

癌症是严重威胁人类健康的疾病之一,下列与此相关的叙述中不正确的是[ ]

A.原癌基因和抑癌基因普遍存在于人和动物细胞的染色体上

B.细胞癌变后细胞膜表面糖蛋白增加

C.艾滋病患者比正常人患癌症的概率要高

D.在适宜的条件下,癌细胞能够无限增殖

考点:癌细胞的主要特征细胞的癌变
题型:选择题

完成对话。

P: Can you 1______ a description of the man you are trying to find?

M: Yes, he is about the same age 2______ I am. He is very tall.

P: I have some pictures. Look, does any one of these look like him? What 3______ this man?

He is a man 4______ is as old as you and who is very tall.

M: No, it wasn't 5______. The man I'm looking for 6______ black hair.

P: Was 7______ long?

M: No, he has hair that is very 8______, and has very small nose.

P: Can you remember anything 9______ about him?

M: Yes, he has eyes that are very big and a face that is round.

P: How about his mouth?

M: Oh, his mouth is very small.

P: Is this 10______ man you are looking for?

M: Yes, that's him! That's the man.

题型:选择题

向BaCl2溶液中滴加H2SO4溶液,直到沉淀完全为止.其结果是生成溶液的质量恰好等于原BaCl2溶液的质量,则滴入的硫酸溶液中溶质的质量分数为______.

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某大学教授拟调任出版社社长,为达到新闻出版总署规定的上岗条件,他应该()。

A.参加出版中级资格考试并合格

B.参加新闻出版行业领导岗位培训并考试、考核合格

C.参加中国出版工作者协会或中国编辑学会

D.接受着作权知识培训

E.接受数字出版知识培训

题型:选择题

鼠粘子是

A.赤小豆
B.二丑
C.牛蒡子
D.五味子
E.续随子

题型:选择题

行政复议参加人主要包括()。

A.申请人

B.被申请人

C.第三人

D.申请人的朋友

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