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【单选题】
According to the passage, why is the binary system often called 'the lazy schoolboy's dream' ?A.
Arithmetic operation in this system are relatively easy.
B.
The two-scale mathematical operations are interesting.
C.
The schoolboy likes the digital computers.
D.
This system is not required to be learned in school.
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举一反三
【简答题】折断面暴露稍久,常可析出白色细针状结晶的是 ( )A.苍术B.木香C.白术 D.莪术A. 1 B. 1 C. 1 D. 1
【单选题】患者女,55岁,风湿性心脏瓣膜病,平时一般活动无明显症状,近两日感冒后,出现明显心力衰竭的临床表现,入院治疗,护士在评估时,提示患者心衰严重的表现是 A、体温37.5°C B、血压95/65mmHg C、心率95次/分 D、听力减弱 E、端坐体位
A.
B.
C.
D.
E.
E
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