慢性心房颤动病人应用洋地黄后心室律突然转为绝对规则,45/min,可能为下列哪种情况

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问题:

慢性心房颤动病人应用洋地黄后心室律突然转为绝对规则,45/min,可能为下列哪种情况

A.已转变为窦性心律

B.已达洋地黄化

C.可能为洋地黄中毒

D.转为心房扑动

E.继续应用洋地黄,给予维持量

考点:卫生资格考试(中初级)消化科专业知识消化科主治医师专业知识5
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女,41岁。夜间上腹痛3年,胃镜检查确诊为十二指肠溃疡,近2周来疼痛变为餐后腹痛、呕吐,吐出大量酸腐味宿食,应考虑并发了().

A.溃疡穿孔

B.溃疡恶性变

C.急性胰腺炎

D.幽门梗阻

E.溃疡大出血

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8点30分时,钟表的时针与分针的夹角为______°.

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Passage Four

What began with the invention of the telephone in 1876 has today become a global net of cables, satellites, transmitters, and receivers that enables half the population of the planet to exchange works, data, and images in seconds. It could take less than 25 years more to give the other half of the world’s people this same power.
The unified global telecommunications system, which is called "the Meganet’, represents the greatest construction project ever undertaken. If present trends continue, by early in the 21st century the Meganet will link every computer terminal, fax machine, databank, and telephone instrument on earth.
Unlike its anarchic (无政府主义的) cousin the Internet, which evolved from free interaction among interest groups of computer users, the Meganet of local telephone service, long-distance lines, communications satellites, and mobile relays has been planned, constructed, regulated and largely sponsored by governments and for-profit business interests. As new materials and technologies bring reliable voice and data links to formerly isolated or closed communities, political and economic power struggles grow.
The Meganet breaks long-established patterns of social identity and responsibility. Where private individuals have uncensored access to global information sources, local standards of legality or decency become difficult even to set, let alone to enforce. Economic values may shift, too. Public utility companies have long supplied electric power over miles of high-tension lines, or pumped water through underground pipelines into thousands of homes. Now they are finding that their power-line rights-of-way and physical into-home connections let them compete with cable TV and phone companies to supply information services as well.
Meganet impacts are often double-edged for finance and business, too. New York’s Wall Street district lost 20% of its work force—some 100 000 jobs—in less than a decade, as computers took over tasks once performed by clerks and banks did more of their business by phone transfers and automated teller machines.

The word "uncensored" (Line 2, Para. 4) probably means ______ .

A.unguarded

B.unchecked

C.unidentified

D.unwarranted’

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由于直流电弧炉和交流电弧炉电气特性的不同,冶炼过程中前者产生的噪音通常比后者()

A.低

B.高

C.没有区别

题型:单项选择题

有关急性白血病,下面描述哪一个是错误的

A.白细胞都升高

B.多数有发热

C.血小板多减少

D.可以关节痛起病

E.大多有出血

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