A. by B. about C. for D. on
A. preparation B. inclination C. compensation D. suggestion
A. 493.12 B. 485.13 C. 485.72 D. 498.18
A. 正确 B、错误
A. 20, 000, 000. B. 18,000, 000. C. 28, 000, 000. D. 25,000, 000.