在中国古代史书中，罗马被称为( )。
A．大秦
B．大夏
C．大食
D．安息
参考答案：A
If you can't read the new words, you may _____ in the dictionary. [ ]
A. look it up
B. look up it
C. look them up
D. look up them
卷边焊
