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【单选题】
细菌因染色体上整合有前噬菌体,从而获得新的遗传性状其基因转移和重组的方式是:A.
转化
B.
转导
C.
溶原性转换
D.
接合
E.
细胞融合
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举一反三
【单选题】Smoking Since 1939, numerous studies have been conducted to determine whether smoking is a health hazard. The trend of the evidence has been consistent and indicates that there is a serious health ris...
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】Smoking is a greater cause of death and disability than any single disease, says the World Health Organization. According to their figures, it is responsible for approximately five million deaths worl...
A.
Smoking is the greatest cause of death worldwide every year.
B.
Smoking is the second greatest cause of death worldwide every year.
C.
Smoking is responsible for three million deaths worldwide every year.
D.
Smoking is responsible for more than half of all deaths to middle-aged people.
【单选题】Smoking Since 1939, numerous studies have been conducted to determine whether smoking is a health hazard. The trend of the evidence has been consistent and indicates that there is a serious health ris...
A.
Right
B.
Wrong
C.
Not mentioned
【多选题】病历摘要: 患者男性，52岁。头痛伴呕吐2月，呕吐呈喷射性。既往身体健康。体检：神清，表情淡漠，反应迟钝，双眼底视神经乳头明显水肿，左鼻唇沟稍浅，左腹壁反射减弱，左上下肢肌力4级，左Babinski征（-）。 下列关于多形性胶质母细胞瘤的叙述哪些是正确的？提示：肿瘤病理报告为多形性胶质母细胞瘤（）
A.
主要发生于儿童
B.
好发于大脑半球白质内
C.
呈浸润性生长
D.
高度恶性
E.
出血、坏死少见
F.
常向颅外转移
G.
术后易复发
H.
术后需行放、化疗
【单选题】足部被铁钉刺进后,首先须立即把钉子完全拔除,然后进行下述现场急救处理。错误的是
A.
拔出锈钉，用力挤出伤口几的瘀血和污物
B.
清洗伤口，涂以碘酒，酒精消毒，3％过氧化氢或1％高锰酸钾液冲洗伤口
C.
到医院去注射破伤风抗毒血清
D.
不用理会，自然就会好
【单选题】Smoking Since 1939, numerous studies have been conducted to determine whether smoking is a health hazard. The trend of the evidence has been consistent and indicates that there is a serious health ris...
A.
Right
B.
Wrong
C.
Not mentioned
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