单选题:发绀是由于 题目分类:专业实务 题目类型:单选题 查看权限:VIP 题目内容: 发绀是由于 A.毛细血管扩张充血 B.红细胞量增多 C.红细胞量减少 D.血液中去氧血红蛋白增多 E.毛细血管血流加速 参考答案: 答案解析:
Thereadercanconcludethat______. Thereadercanconcludethat______.A.countriesoftheworldwillworktogetheronpollutionp 分类:专业实务 题型:单选题 查看答案
The children lined up and walked out The children lined up and walked outA.in person B.in private C.in order D.in pr 分类:专业实务 题型:单选题 查看答案
-Who is he? Is he our new teacher?-I'm sorry. I don't know -Who is he? Is he our new teacher?-I'm sorry. I don't know _______and_______he 分类:专业实务 题型:单选题 查看答案
The story is hard to understand_______there are no new word The story is hard to understand_______there are no new words in it.A.but B.so C 分类:专业实务 题型:单选题 查看答案
自古以来,中国人就有饮茶的习惯,国内较早关于茶叶的研究来自唐代陆羽的《茶经》,茶叶按其制作工艺可以分为不发酵、半发酵和完 自古以来,中国人就有饮茶的习惯,国内较早关于茶叶的研究来自唐代陆羽的《茶经》,茶叶按其制作工艺可以分为不发酵、半发酵和完全发酵茶。以下属于半发酵茶的是()。A. 分类:专业实务 题型:单选题 查看答案