能发行股票的经济主体只有股份有限公司。 ( )
参考答案：对
—How are you getting on with your work?
—I can't do it any longer. I’ ll have get help. [ ]
A. lonely
B. Quietly
C. alone
D. hard
存储一个48×48点阵的汉字字形码需要的字节个数是
A．384
B．288
C．256
D．144
