My father ask me ________ some vegetables
[ ]
A. eat
B. eating
C. to eat
答案:C
乙状结肠镜检查的常用体位是
A.外吹乳痈B.内吹乳痈C.不乳儿乳痈D. * * 破裂乳痈E.席风呵乳
造渣制度应根据()和()确定。