铲运机的有效运距为( )。
A.100~200m
B.150~250 m
C.200~350m
D.400~500m
参考答案:C
What you said just now____ the matter we are discussing.
A.have something to at
B.has something to do with
C.had something to do with
D.has been something to do with
女性,45岁。反复上腹部隐痛,疼痛于进餐后1小时加重,有反酸胃灼热,7天前上述症状加重并伴有腹胀。查体:上腹部压痛。
若该患者选用PPI制剂,治疗的疗程是()
A.2~4周
B.4~6周
C.6~8周
D.半年
E.1年