直髓提高试验,正常一般至少提高到()。
A.40°-49°
B..50°-59°
C.60°-70°
D.80°-99°
E.90°及以上
参考答案:C
肝硬化腹腔积液产生的机制不包括()。
A.门静脉内压增高
B.血清清蛋白减少
C.肾小球滤过减少
D.醛固酮分泌增多
E.脾功能亢进
You don't need to buy ______ junk food. [ ]
A. so much
B. so many
C. such much
D. very much