皮皮学，免费搜题
登录
搜题
【判断题】
cmd 命令可以修改系统配置信息、服务信息和启动信息。A.
正确
B.
错误
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
【单选题】The function of Modem is to .
A.
realize remote connection of computers实现计算机的远程联网
B.
transmit binary signals between computers
C.
implement the conversion of digital signal and analog signal
D.
to improve communication speed between computers
【单选题】A modem is used to____
A.
change incoming analog signals to digital signals and outgoing digital signals to analog signals
B.
connect two computers using a satellite uplink
C.
connect a computer to a shared printer.
D.
None of above
【简答题】动态数列的水平指标有()、()、()和()等。
【简答题】2 The risk committee at Southern Continents Company (SCC) met to discuss a report by its risk manager, Stephanie Field. The report focused on a number of risks that applied to a chemicals factory rece...
【单选题】李某，男，59岁。有高血压病史9年。近1月来2次出现上楼时突感胸骨后压榨样疼痛，向左肩放射，休息约5分钟后自行缓解。对此病人关于休息与活动方面的健康指导，下列哪项是错误的（）
A.
保证充足的睡眠
B.
避免精神刺激及过度劳累
C.
为有效促进侧支循环形成，平时可选择举重、拉力器等健身活动
D.
缓解期一般不需要卧床休息
E.
最大活动量以不发生心绞痛症状为宜
【简答题】翻译下面的句子: An external modem is a stand-alone modem that is connected via cable to a computer's serial port.
【单选题】Modem is ______.
A.
a modulator
B.
a demodulator
C.
a modulator/demodulator
D.
a data set
相关题目：