奶牛反刍活动减弱,可选用()
A.鱼石脂
B.二甲基硅油
C.浓氯化钠注射液
D.硫酸钠
E.乳酶生
参考答案:C
有关肾错构瘤的描述,错误的是()
A.错构瘤含有脂肪、平滑肌和血管成分
B.可偶见自发性出血
C.典型表现为双肾多发病变,偶见钙化
D.20%~40%的错构瘤患者伴发结节性硬化
E.可无临床症状
I was worried about my maths, but Mr. Brown gave me an A.()
A.Don't worry about it.
B.Congratulations! That's a difficult course.
C.Mr. Brown is very good.
D.Good luck to you!