正常红细胞平均直径是（）
A.6.0μm
B.6.2μm
C.7.2μm
D.8.2μm
E.9.0μm
参考答案：C
My computer has broken down. I'll get it _____ this afternoon. [ ]
A. repairs
B. repairing
C. repaired
D. to repair
