单项选择题
A.75mmHgB.150mmHgC.300mmHgD.25mmHg
A.4档B.11档C.3档D.12档
A.5档,75mmHgB.4档,150mmHgC.3档,150mmHgD.4档,75mmHg
A.符合EN17892007欧盟救护车标准B.便携把手C.大容量锂电池D.精度高
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