解不等式组并写出不等式组的正整数解.
参考答案:
解不等式①②,得-2<x≤3,∴原不等式的正整数解是1,2,3.
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A. Yes, I have.
B. No, I haven't.
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D. No, I don't.
患者男,60岁,间断头晕头痛5年加重伴心悸、气急1天来诊。查体:BP170/115mmHg,HR108次/分,律齐,心界向左大,双下肺湿啰音。心电图示窦速,V导联R波2.8mV。尿常规示蛋白(+)。
患者尿蛋白(+)说明()
A.高血压导致肾功能受损
B.高血压导致肾功能衰竭
C.高血压导致肾病综合征
D.急性左心衰导致肾功能受损
E.急性左心衰导致肾功能衰竭