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问题 单项选择题

有关肿瘤坏死因子描述，错误的是（）

A.由T细胞、单核细胞、吞噬细胞产生

B.可引起肿瘤组织出血、坏死

C.可引起抗感染的炎症反应

D.对免疫细胞有调节、诱生作用

E.可分为TNF－α和TNF－β两型，其生物活性各不相同

答案

参考答案：E

判断题

半面痉挛晚期可使面肌肌力显著减弱，甚至出现永久性面瘫。
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单项选择题

When women do become managers, do they bring a different style and different skills to the job Are they better, or worse, managers than men Are women more highly motivated and (51) than male managers

Some research (52) the idea that women bring different attitudes and skills to management jobs, such as great cooperativeness, an emphasis on attachment, and a (53) to bring emotional factors to bear in making workplace decisions. These differences are seen to carry advantages for companies, (54) they expand the range of techniques that can be used to (55) the company manage its workforce effectively.

A study commissioned by the International Women’s Forum discovered a management style used by some women managers (and also by some men) that (56) from the command-and-control style traditionally used by male managers. Using this "interactive leadership" approach, "women (57) participation, share power and information, enhance other people’s self-worth, and get others excited about their work. All these (58) reflect their belief that allowing employees to contribute and to feel powerful and important is a win-win (59) —good for the employees and the organization. " The study’s director (60) that "interactive leadership may emerge as the management style of choice for many organizations. \

55().

A.help 

B.enable 

C.support 

D.direct
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