皮皮学，免费搜题
登录
搜题
【单选题】
计算机中现代操作系统的两个基本特征是( )和资源共享。A.
多道程序设计
B.
中断处理
C.
程序的并发执行
D.
实现分时与实时处理
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】如果α是第四象限角,则α-90 是( )
【判断题】如果tana<0,则a是第二象限或第四象限角。< /div>
A.
正确
B.
错误
【简答题】Who should they call if they have any problems about the request? If they have any problems，they should call______．
【简答题】下面哪个是会话层协议A.TC B.IX C.NetBIOS D. C.NetBIOS
【简答题】A．If they stay in a snow-covered area. B．If they do not keep themselves warm. C．If they do not take enough equipment. D．If they stay in the middle of the mountain.
【单选题】To test eggs , ___them in a bowl of water: if they float they are bad; if they sink they are good.
A.
put
B.
putting
C.
to put
D.
to be putting
【简答题】A．If they learn it is harmful for health. B．If they lie to themselves that they don't want it. C．If they are willing to let doctors control their minds. D．If they. think they once had a bad experience...
【简答题】在RNA聚合酶全酶中，识别转录起始位点的是（）。
相关题目：
【判断题】如果tana<0,则a是第二象限或第四象限角。< /div>
A.
正确
B.
错误