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【单选题】
对该患者局部压疮的处理方法不妥的是
A.
局部按外科换药处理
B.
清除坏死组织,生理盐水冲洗
C.
大水疱剪去表皮,消毒溶液
D.
伤口湿敷
E.
用高压氧治疗
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A.
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B.
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C.
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含71gNa 2 SO 4 的溶液中所含Na + 离子数目为N A
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A.
1 mol/L的氯化钠溶液中钠离子的个数为N A
B.
依据阿伏加德罗定律,同温同体积下两种气体的物质的量之比等于压强之比
C.
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A.
28g氮气含有的原子数目为N A
B.
阿伏加德罗常数N A 在数值上与0.012kg l2 C中所含的原子数相等
C.
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D.
1L1mol/LNaCl溶液中所含有的Na + 离子数目为N A
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A.
red
B.
blue
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green
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A.
Red.
B.
Green.
C.
Yellow.
D.
Blue.
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