The door opened and in ______ .
A.came she
B.did she come
C.did Miss Gao come
D.she came
答案:D
北京:上海
A.慕尼黑:柏林
B.华盛顿:纽约
C.大阪:东京
D.伦敦:柏林
简述游标卡尺的使用方法?