—How do you arrive there?
—By plane. [ ]
A. in
B. at
C. on
D. /
答案:D
开动采煤机时,必须喷雾降尘,无水或喷雾装置损坏,必须停机。()
漏睛的病变部位在()
A.上胞
B.下胞
C.小眦
D.大眦
E.睑弦