PAL制与NTSC制有何主要异同?

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问题:

PAL制与NTSC制有何主要异同?

考点:电子与通信技术电视机原理电视机原理题库
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小儿暑邪感冒证的首选方剂是

A.香薷饮

B.小青龙汤

C.新加香薷饮

D.桑菊饮

E.华盖散

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Nearly 600,000 Americans lost their jobs this past month, pushing the nation’s unemployment rate (失业率) to 7.6 percent. But not all of those fired workers are sitting at home, reading the job advertisements and waiting for the phone to ring. Thousands of people are returning to school, making public colleges and universities among the few bright places in the disappointing US economy.

At a time when many Americans have had their work hours cut or have even lost their jobs, Sherian Huddleston is working overtime. She works at Middle Tennessee State University (MTSU) where she oversees (监督) the enrollment (注册) of new students. The university’s population grew by 800 students this term —an increase of 4 percent over last spring’s enrollment. Huddleston says seeing the enrollment rise in a failing economy is not unexpected. "When people are out of work," she points out, "they will ask 'What else can I do?’ or 'What other careers can I follow?’ They will often return to school if they have not completed a degree before."

Older returning students aren’t the only ones increasing the enrollment at MTSU. Huddleston says she’s also seeing an increase in student transfers (转移). "Students who went out of state, or even within the state, to more expensive schools are transferring to public schools to make use of the lower cost of going to school here," she explains.

小题1:Which is the best title for the passage?

A.The Falling American Economy

B.College Enrollment up in a Down Economy

C.Colleges Have More Students Than Before

D.Going to College Is No Longer Difficult小题2:According to the passage, many students return to school ______.

A.to make more money

B.to read job advertisements

C.to complete a degree

D.to ask their schoolmates for help小题3:Many students are transferring to public schools mainly because ______.

A.public schools provide better education

B.public schools offer better jobs to their students

C.they don’t want to be influenced by the falling economy

D.the cost of public schools is lower and they can save money小题4:Which of the following is TRUE about Sherian Huddleston?

A.She is working more hours than before because of the worsening economy.

B.She is a student of Middle Tennessee State University.

C.She disagrees with those who are returning to school.

D.She is surprised to see the enrollment go up.

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以下是指定VPN在建立连接时协商IKE使用的策略,阅读下面的配置信息,解释(6)、(7)处的命令。
Router(config)#crypto isakmp policy 10 (定义策略为10)
Router(config-isakmp)#hash md5 (6)
Router(config-isakmp)#authentication pre-share (7)
Router(config-isakmp)#exit
Router(config)#crypto isakmp key cisco123 address 0.0.0.0 0.0.0.0 (配置预共享密钥为cisco123,对等端为所有IP)

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火车运输对整车货物的承运前保管责任从填写()起算。

A.托运单

B.入库单

C.收货证

D.提货证

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东方公司为增值税一般纳税人,适用增值税税率17%。该公司生产经营A产品,A产品的单位售价为500元(不含税),单位成本为350元。2012年3月份该公司发生的交易或事项有:
(1)向本市某商场销售A产品60台,价税款收妥存入银行。
(2)按合同规定销售给外地某单位A产品80台,产品已发出,价税款尚未收到。
(3)以银行存款支付A产品广告费5000元。
(4)支付当月短期借款利息费用2000元。
(5)支付业务招待费等管理费用5800元。
(6)以银行存款支付公益性捐赠款1500元。
(7)当月确认的所得税费用和应交所得税为1675元,所得税当即以银行存款缴纳。不考虑其他因素。

当月发生的交易或事项对资产和负债的影响有( )。

A.资产增加16925元

B.负债增加9900元

C.资产减少16925元

D.负债减少9900元

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