中国手工业有以下几种主要形态,主要供官府、贵族消费的生活用品来自
A.官营手工业
B.民营手工业
C.家庭手工业
D.以上几种都不是
答案:A
计算旅客周转量时,旅客人数应以何为准()
A.客流
B.人公里
C.发送旅客人数
D.运送旅客人数
There is a difference between what we know, which is our linguistic competence, and how we use this knowledge in actual speech production and______, which is our linguistic performance. ( )
A.creation
B.communication
C.comprehension
D.perception