瘤胃穿刺主要用于（）的紧急治疗。
A、瘤胃臌气
B、瘤胃积食
C、瘤胃弛缓
D、瘤胃酸中毒
参考答案：A
John was made _______ the truck for a week as a punishment. [ ]
A. to wash
B. washing
C. wash
D. to be washing
寒凉性药物的作用是（）
A.泻下大便
B.清热利尿
C.止咳平喘
D.清热泻火
E.凉血解毒
k as a puni
shment. [ ]