根据临床表现难以区分肠结核和克罗恩病时,最可靠的鉴别方法是
A.诊断性抗结核治疗B.X线全程钡餐检查C.结肠镜检查D.剖腹探查
参考答案:D
They are reading ________lesson on Page ________.
A.nine;Twelve
B.nine;the twelfth
C.the ninth;Twelve
D.the ninth;the twelfth
当代信息技术对教育产生了怎样的影响?