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输血时，需要有几名医护人员核对患者情况，确认配血报告，核对血液后，进行输血（）

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Changes in residence and jobs place a tremendous amount of stress and pressure【B1】people【B2】they try to adjust themselves to new people and places. Yet short-lasting relationships are not【B3】only to people and places. Objects move in and out of our lives at an astonishing rate. America, the "consumer society", has also been【B4】the name "the throw away society". Every year we throw away【B5】quantities of bottles, cans, paper, and on and on, buildings are pulled【B6】around us, and new ones take their place; they are cheaper to replace than to repair.【B7】every major change, our places feel【B8】familiar. Our lives become filled【B9】a sense of impermanence and uncertainty.
The rate at which new and sometimes contradictory information comes at us【B10】contributes to our feelings of instability and transience. It's estimated that 90 percent of all scientists who ever lived are【B11】today. New scientific discoveries are being made every day of the week,【B12】unlike in other ages, new ideas are quickly applied in practical ways. The【B13】of new technology on our lives is felt almost immediately.
As we look【B14】on history, we think in terms of large periods of time, from the ten thousand years of the agricultural revolution to the three hundred years of the industrial【B15】. Today time【B16】like it's speeding up. We no longer【B17】to think of change in terms of centuries,【B18】in terms of【B19】, the 1960's, 1970% and 1980's. The day may come【B20】we will think of great historical change in terms of years, even months.
【B1】

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执业规范是用条例、章程、守则、规则、制度、公约等以简明的形式对行业行为作出规定，执业规范的条文指向具体的行为，具有很强的（）。 A．广泛性和时代性 B．广泛性和可操作性 C．针对性和时代性 D．针对性和可操作性

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