单项选择题

某医院某年住院病人中胃癌患者占5%，则（）。
A、5%是强度指标
B、5%是率指标
C、5%是相对数指标
D、5%是绝对数指标
E、5%说明胃癌在人群中的严重性

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刊心刻骨什么意思？刊心刻骨怎么读？

答案：参考答案：
拼音：kān xīn kè gǔ，简拼：kxkg
成语解释：指印象深刻，令人难忘。

单项选择题

Which of the following is true for this BJT circuit?（） A. The base-emitter and collector-base junctions are both forward-biased. B. The base-emitter junction is forward-biased and the collector-base junction is reversed-biased. C. The base-emitter junction is reverse-biased and the collector-base junction is forward-biased. D. The base-emitter and collector-base junctions are both reverse-biased.