开口度是指患者开口最大时
A．上下唇之间的距离
B．下中切牙切缘之间的距离
C．上下中切牙龈缘之间的距离
D．鼻底至颏底的距离
E．以上都不对
参考答案：B
________ one foot before the other, slowly and purposefully, the deer walked up to ______ I was _______.
A．Put, where, seated
B．Putting, the place where, seating
C．Put, the place in which, sitting
D．Putting, the place where, sitting
对蛔虫、蛲虫、钩虫、毛圆线虫混合感染有效的是（）
A.甲苯咪唑
B.氯硝柳胺
C.吡喹酮
D.哌嗪
E.噻嘧啶
