2.4元=______元______角5千克230克=______千克.
2.4元=(2)元(4)角;
5千克230克=5.23千克;
故答案为:2,4,5.23.
—Where's Mike? I haven't seen him for a week.
—He _____ to Hong Kong and he'll be back soon.
A. is going
B. has gone
C. has been
D. went
未列入省调电压监视控制点、电压监视点的发电厂、220KV变电站各级母线为()的电压监视点。