皮皮学，免费搜题
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搜题
【单选题】
对肝素的不正确描述是
A.
仅在体内有效
B.
在体内、外均有效
C.
可加速凝血酶的灭活
D.
口服无效，须注射给药
拍照语音搜题，微信中搜索"皮皮学"使用
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【单选题】No one can be a great thinker who does not realize that as a thinker it is his first duty to follow his intellect to whatever conclusions it may lead. Truth gains more even by the errors of one who wi...
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