更多“互补功率放大电路是一种无输入、输出变压器的推挽功率放大电路,”相关的问题
对含采样结果在内的监测报告,还应包括下列哪些信息:()
A.采样日期
B.采集样品的名称和类别
C.采样地点
D.采样方案或程序
点击查看答案
Birdsong A male zebra finch chirps away to himself. Suddenly he notices a female bird nearby. He re...Which of the following can best reflect the theme of the passage
A.Chirping away.
B.Birdsongs as communication.
C.Zebra finches and their life.
D.Enjoying birdsongs.
点击查看答案
波长λ=550nm(1nm=10-9m)的单色光垂直入射于光栅常数为2×10-4cm的平面衍射光栅上,可能观察到光谱线的最大级次为:()
A.2
B.3
C.4
D.5
点击查看答案
大学生的学业发展路径有()。
A.学术型
B.活动型
C.技术型
D.综合型
点击查看答案
YoucreateaWindows7deploymentimagethatincludescustomInternetExplorerbrandingandsearchproviders.YourcompanydecidestodeployallcustomsettingsbyusingGroupPolicy.YouneedtorestoretheInternetExplorersettingsinthedeploymentimagetotheMicrosoftdefaultsettings.Whichtwoactionsshouldyouperform?()A.UsetheResetInternetExplorerSettings(RIES)feature,andruntheResetprocessonthedeploymentimage.B.UsetheResetInternetExplorerSettings(RIES)feature,andruntheRemoveBrandingprocessonthedeploymentimage.C.UpdatetheInternetExplorerMaintenancepolicyprocessingGroupPolicyobject(GPO)settingsforallcomputers.D.UpdatetheInternetExplorerManageAdd-onssettingsforallcomputers.
A.YourcompanydecidestodeployallcustomsettingsbyusingGroupPolicy.YouneedtorestoretheInternetExplorersettingsinthedeploymentimagetotheMicrosoftdefaultsettings.Whichtwoactionsshouldyouperform?()A.UsetheResetInternetExplorerSettings(RIES)feature,andruntheResetprocessonthedeploymentimage.B.UsetheResetInternetExplorerSettings(RIES)feature,andruntheRemoveBrandingprocessonthedeploymentimage.C.UpdatetheInternetExplorerMaintenancepolicyprocessingGroupPolicyobject(GPO)settingsforallcomputers.D.UpdatetheInternetExplorerManageAdd-onssettingsforallcomputers.
点击查看答案
丙酮在己烷中的λmax=279nm,εmax=14.8,判断由哪种跃迁引起的该吸收峰()
\tA.σ→σ*
\tB.n→σ*
\tC.n→π*
\tD.π→π*
点击查看答案
明细账分为()。
A.客户明细账B.销账类明细账C.非销账类明细账D.内部明细账
点击查看答案
On a Cisco 1000 Series controller-based access point, the alarm LED is flashing red, but the otherLEDs are off. What is this access point indicating?()
A . Its IP address already exists.
B . It is operating normally.
C . It requires a code upgrade.
D . It has lost contact with the controller.
点击查看答案
分析艾默生精密空调报断电故障分析原因及处理办法?
点击查看答案
在图示的三相四线制低压供电系统中,如果电动机M1采用保护接中线,电动机M2采用保护接地。当电动机M2的一相绕阻的绝缘破坏导致外壳带电,则电动机M1的外壳与电动机M2的电位应()。
A.不相等
B.相等或不等
C.不能确定
D.相等
点击查看答案
几个共点力作用在一个物体上,要使该物体保持平衡的必要条件是()。通用手势信号中,“预备”为手臂伸直置于头(),五指自然伸开,手心朝前保持不动。
A、上方
B、前方
C、侧方
D、后方
点击查看答案
5S活动中的,清扫指( )。
A.去除现场的脏物、垃圾、污点
B.经常清扫、检查
C.形成制度,采取根治污物的措施
D.消除影响提高产品质量的一切因素
E.去除产品质量波动中的异常波动
点击查看答案
Which of the following statements is correct regarding a hybridcrypto system?()
A . uses symmetric crypto for keys distribution
B . uses symmetric crypto for proof of origin
C . uses symmetric crypto for fast encrypted/decryption
D . uses asymmetric crypto for message confidentiality
E . uses symmetric crypto to transmit the asymmetric keys that is thenused to encrypt a sessio
点击查看答案
投入较少却可获得较满意的效果,还能准确地了解敌情的间谍是()
A.生间
B.反间
C.死间
D.乡间
点击查看答案