题型:填空题 There_____ a large number of students in the hall, and the number of the students_____ more than 3000.A.is, isB.is, areC.are, isD.are, are 查看答案
题型:填空题 患者女性,30岁,去年冬季发生进食后胃区痛,且有打嗝、反酸,持续约20天。查体在剑突左侧有局限压痛,但无反跳痛。考虑何病所致A.胃溃疡B.急性胃炎C.慢性胃窦炎D.十二指肠溃疡E.食管憩室 查看答案