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VHs—c型摄录一体机是指采用VHs—C磁带盒的摄录一体机，在VHS—C格式中，为了减小体积，把磁鼓直径由VHS型的62mm减小到41.33mm，在磁鼓上装有()视频磁头。并把磁带的包角由180°扩大到270°。
A.1个
B.相隔180°的2个
C.相隔120°的3个
D.相隔90°的4个
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题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A.1个
B.相隔180°的2个
C.相隔120°的3个
D.相隔90°的4个
如果结果不匹配，请 联系老师 获取答案
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D.自主型触发是受众被品牌主张、视觉呈现等因素自觉吸引带来的注意力增长
Panasonic NV-F55MC operating Instructions
Ⅰ. Installation
(Ⅰ) Connection to a TV set
1. Connect the external aerial (天线) to the RF Input Socket (插座) on the VTR (Videotape Recorder).
2. Connect the aerial terminal on your TV set to the RF Output Socket on the VTR with the supplied DIN-DIN Coaxial Cable.
In places with higher temperature and high humidity (湿度), people with sensitive skin may feel some electricity. In this case, use the Separate Transformer Adaptor.
3. Connect the AC Mains Lead to the AC Mains Socket of the VTR to the mains outlet.
4. If the TV set is equipped with separate video and audio input sockets, it is recommended to connect the VTR to the TV set with separate video and audio cables.
(Ⅱ) Connection to a Stereo Amplifier
1. Connect the Audio Input Sockets on the VTR to the REC OUT Sockets on the Stereo Amplifier.
2. Connect the Audio Output Sockets on the VTR to the PLAYBACK Sockets on the Stereo Amplifier.
Ⅱ. Tuning the TV Set to the Video Playback Channel
(Ⅰ) Video Playback Channel Adjustor
1. Turn the TV set on and select the AV program position or another program position that is not occupied by another TV station.
2. Press the VTR ON/OFF Switch to turn the VTR on.
The corresponding indicator lights up.
3. Set the Karaoke Switch to "1" or "2".
4. Tune the selected program position of the TV set to UHF approx, channel C25 (PAL D) or E38 (PAL I/SECAM D. K. ). Confirm on your TV set that the blue screen appears. (C25: China channel 25; E38: Europe standard channel 38)
If UHF channel E38 (C25) is already occupied by a TV station in your area, the video playback channel can be changed between channel 32 to 40 (24 to 27) on the back of the VTR by using a small screwdriver.
5. Set the Karaoke Switch to "NORMAL". Your TV is now ready to receive the RF output signal from the VTR.
6. To check, playback a pre-recorded tape and confirm that the picture quality is satisfactory.
(Ⅱ) RF Selector
Use the RF Selector to select the color TV system used by the TV set to be connected.
(Ⅲ) PAL/MESECAM Selector
This selector should be set according to the color TV system used during recording and play back. When the MESECAM Indicator is lit, the MESECAM is selected.
Ⅲ. The Video Cassette
(Ⅰ) Inserting a Video Cassette
1. Insert the video cassette as shown. The VTR will be turned on automatically and the cassette will be automatically drawn into the VTR.
2. When a video cassette is inserted, the "" mark will appear.
When a video cassette with broken erasure (擦除) prevention tab (for example a pre recorded tape) is inserted, playback will start immediately.
Use the VHS video cassette tapes only.
We recommend the "Panasonic Hi-Fi" high grade video cassette tapes for improved picture and sound quality.
(Ⅱ) Removing a Video Cassette
Press the Eject (弹出) Button. Simply press the Eject button, the VTR turns itself on, ejects the cassette and turns itself off again.
Ⅳ. Karaoke Playback
(Ⅰ) Preparation
1. Make sure that the Timer Record Function is set to "OFF".
2. Insert a Karaoke video cassette.
3. Turn the TV set on and select the video playback channel.
4. Set the Noise Filter/Edit Selector to "OFF".
5. Connect a microphone to the Microphone Socket on the VTR.
6. Set Karaoke Switch to "1" or "2".
7. Select a desired tune.
(Ⅱ) Singing along with a video cassette
1. Press the Play Button to begin the playback.
2. Adjust t
A．Y
B．N
C．NG
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B.实战演练可检验和提高相关人员的临场组织指挥、队伍调动、应急处置和后勤保障等应急能力
C.实战演练方法成本低，针对性强，是应急行动单位为应对生产安全事故做准备常采用的一种有效方式
D.实战演练可分为预知型演练与非预知型演练
A.政府采购有非商业性、非盈利性的特点
B.采用公开竞标方式开展政府采购可以有效避免采购中的腐败行为
C.政府采购成本和政府的行政成本是同一概念
D.政府采购是公共财政履行宏观经济管理职能的具体表现
E.政府采购应采用商业采购模式
