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【单选题】
老年人大动脉弹性减退伴有小动脉硬化时,血压的变化是A.
收缩压与舒张压均升高
B.
收缩压升高，舒张压变化不大 D .
C.
收缩压升高，舒张压降低
D.
收缩压降低，舒张压升高
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A.
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B.
everybody know well that advertising is money consuming
C.
advertising costs money like everything else
D.
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A.
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B.
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C.
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D.
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A.
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on
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