蜗杆的()相同,特性系数的值越大,导程角越小。
A.大径
B.分度圆直径
C.模数
D.头数
参考答案:C
病历摘要:患者男性,60岁,1周前外地出差归来后,出现左下腹疼痛,腹泻,粘液脓血便,里急后重,肛门灼热,自服用黄连素后,症状反复。今日病情突然急剧加重,神志昏蒙,四肢厥冷,高热,体温持续39℃,大便失禁,痢下鲜紫脓血,呕吐,舌质红绛,脉微欲绝。 病人此时的治法应为哪种?提示:患者经治疗后,病情好转出院,但时有腹胀、纳少,每遇饮食不当和劳累时,大便时有粘液,舌质淡,脉濡软。()
A.温阳祛寒,益气健脾
B.温中清肠,调气化滞
C.温补脾肾,收涩固脱
D.补中益气,健脾升阳
E.清热化湿,调气行血
We should eat ________ fruit and vegetables, but ________ meat. It is good for our health.
A.more; less
B.more; more
C.less; more
D.less; less