影响第一心音强度变化的因素不包括()
A.心肌收缩力
B.心室充盈度
C.瓣膜弹性
D.瓣膜位置
E.心室壁厚度
参考答案:E
胃肠癌病人可出现()
A.血酸性磷酸酶升高
B.血碱性磷酸酶升高
C.血CEA高
D.血AFP升高
E.血VCA—IgA抗体升高
One may find more ______ in Chinese than in English in descriptive writing.
A. adjectives and metaphors B. pronouns and adjectivesC. hyperboles and pronouns D. nouns and pronouns