单选题
发布日期:2021-04-03
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交流电压是电压的大小和方向都随时间改变的电,而电压大小和方向不随时间改变就叫直流电,如干电池,蓄电池。
正弦(sine),数学术语,是三角函数的一种,在直角三角形中,任意一锐角∠A的对边与斜边的比叫做∠A的正弦,记作sinA(由英语sine一词简写得来),即sinA=∠A的对边/斜边。古代说法,正弦是股与弦的比例。
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Your Company upgrades its network to 100 Mbps. You remove the old network adapter and install a new 10/100 Mbps network adapter into a Windows 2000 Professional computer. You configure the TCP/IP protocol settings to be the same as they were for the previously installed network adapter. When you restart eh computer, however, you cannot access the network. You try to ping your network adapter’s TCP/IP address locally. You receive the following error message. “Request timed out.” Next, you try to ping 127.0.0.1 and receive the same error message. What must you do?()
A router has been configured with the authentication order settings shown below: [edit] user@host# show system authentication-order authentication-order [radius tacplus password]; The router also has a local database that contains the user lab with password lab123. What would happen if both the RADIUS and the TACACS servers respond with a reject for user lab?()
2,2,3,7,16,( )。
什么是价格?制定销售价格时应掌握哪些策略?
鼻中隔前下部反复出血可采用的止血方法是()
患者处于熟睡状态,较响的言语刺激方可唤醒,唤醒后能简单地进行不完全应答,外界刺激停止后立即进入熟睡状态。此种意识障碍属于( )。
简述泛池的定义及泛池的原因。
在实验过程中,对样本的选取应遵循以下哪条原则?()
(哈科)THDS-C系统月检时要求直流光子探头漂移小于150mV/5min。
内部审计师在审计过程中需要运用多种专业方法,下列选项中,属于内部审计师运用抽样的逻辑方法的是:()
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