与十进制数254等值的二进制数是
A.11111110
B.11101111
C.11111011
D.11101110
参考答案:A
解析: 十进制与二进制的转换可采用“除二取余”数。
---I will have to think about it again.
--- If you _ , you may lose the opportunity to compete altogether.
A.hesitate
B.wonder
C.continue
D.fail
GIET药物在肝脏内代谢通常通过两相完成,其中Ⅱ相包括()
A.结合
B.氧化
C.水解
D.还原
E.以上都是