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[单选题]下面各项中,( )不是常用的多媒体信息压缩标准
A.JPEG标准
B.MP3压缩
C.LWZ压缩
D.MPEG标准

热门试题:

[简答题]简述礼仪的灵魂与精髓。
[单选题]在气温低于( )℃进行露天高处作业时,施工场所附近宜设取暖休息室,并采取防火措施。
A.-5
B.-10
C.-15
D.-20
[判断题]《铁路技术管理规程》规定:列车按运输性质分旅客列车、货物列车、军用列车。
A.正确
B.错误
[简答题]阅读下面一首古诗,设计一课时教案。 题西林壁 苏轼 横看成岭侧成峰,远近高低各不同。 不识庐山真面目,只缘身在此山中。
[单选题]作业人员使用安全带必须( )。
A.高挂低用
B.低挂高用
C.高用低挂
D.系牢固
[填空题]Humanity uses a little less than half the water available worldwide.
Yet occurrences of shortages and droughts are causing famine in some
but industrial and agricultural by-products are polluting water supplies. (1) _____
Since the world’s population is expecting to double in the next 50 years, (2) _____
many experts think we are on the edge of a widespread water crisis.
But that doesn’t have to be the outcome. Water shortages do not
have to trouble the world—if we started valuing water more than we (3) _____
have in the past. Just like we began to appreciate petroleum more after (4) _____
the 1970s oil crisis, today we must start looking at water from a fresh
economical perspective. We can no longer afford to consider water a (5) _____
virtual free resource of which we can use as much as we like. (6) _____
Instead, for all uses except the domestic demand of the poor,
governments should price water to refle
[单项选择]邓小平明确指出:“我们是三结合的武装力量体制,野战军、地方军和民兵相结合,就是人民战争。()就是要提高战略地位。”
A. 野战军
B. 地方军
C. 民兵
D. 解放军
[判断题]安全带应系在牢固的物体上,禁止系挂在移动或不牢固的物件上,不得系在棱角锋利处
[单选题]小高的生父及与小高形成了抚养教育关系的继父均于1997年死亡,依照我国法律规定,小高()。
A.只能继承生父的遗产
B.只能继承继父的遗产
C.对生父、继父的遗产都无权继承
D.对生父、继父的遗产都有权继承
[单选题]1.88.
电缆直埋敷设时,机械牵引前应根据电缆规格先沿沟底放置(____)。
A.电缆盘
B.保护管
C.标志牌
D.滚轮
[单选题]甲是乙的必要条件,丙是乙的充分条件但不是乙的必要条件,那么_____。
A.丙是甲的充分条件但不是甲的必要条件
B.丙是甲的必要条件但不是甲的充分条件
C.丙是甲的充分必要条件
D.丙既非甲的充分条件,又非甲的必要条件
[多选题]世界上没有哪个国家不主张爱国,没有哪个国家的人民不把爱国主义当作伟大的精神品格而加以敬仰和推崇。爱国主义是
A.人们对自己祖国的浓厚感情
B.民族精神的核心
C.调整个人与国家、个人与民族关系的道德要求和法律规范
D.一种重大的政治原则
[简答题]以下哪些属于九江银行直销银行“满额贷”产品的借款人准入标准( )
[判断题]安全电压就是电不死人的电压。
A.正确
B.错误
[判断题]在三相电路中,流过每根端线的电流叫做线电流。
A.正确
B.错误
[单选题] 高海拔地区施工在进行高处作业时,作业人员应随身携带小型氧气瓶或袋,高处作业时间不应超过( )h。 (1.0分)
A. 1.0
B. 2.0
C. 3.0
D. 4.0
[单选题] 根据《科创板上市公司持续监管办法(试行)》,下列关于科创公司重大资产重组的说法,正确的是( )。
A. 科创公司并购重组,由证监会统一审核
B. 涉及发行股票的,由交易所审核通过后报经中国证监会履行注册程序
C. 审核标准等事项由证监会规定
D. 交易所重大资产重组相关业务规则由证监会制定
[单项选择]数零件图首先看()。
A. 后视图
B. 剖视图和主视图
C. 尺寸
D. 标题栏
[多选题]运输收入事故等级分为( )
A.一般事故
B.大事故
C.重大事故
D.特大事故
[单选题]在长大桥梁、隧道及嘹望条件不良地段作业时,应增设( )。
A.联络员
B.监护员
C.防护员
D.安全员
[单选题]武汉的铁矿石、水泥、沙子运送到南京,适宜采用(  )。
A.铁路运输
B.水路运输
C.公路运输
D.航空运输
[填空题]
· Read the article below about money management in Britain.
· For each question 31-40.write one word in CAPITAL LETTER on your Answer Sheet.
Younger people are more likely to talk about their money issues than their elder counterparts,it has been revealed.Saga Personal Finance has found that 14 percent of over-50s are happy to talk about their finances ln{{U}} (31) {{/U}},compared to 21 percent of under.50s.People{{U}} (32) {{/U}}.claimed they are unwilling to discuss money openly said they believe those matters should stay private(50 percent)and a tenth explained it was{{U}} (33) {{/U}} they were embarrassed about their financial situation.Around half of the under-50s said they were happy to{{U}} (34) {{/U}}.money with their friends,whereas this fell to 30 percent among the older group.It was also revealed that 71 percent of Brits in a relationship have a separate current{{U}} (35) {{/U}},explaining that they want to keep th
[多选题]我工厂在用的压力容器安全附件有 ( )。
A.安全阀
B. 液位计
C.压力表
D.爆破片
E.温度计
[判断题]电磁式电压互感器利用电磁感应原理,比电容式电压互感器准确,允许所接二次负荷也大。缺点是贵、重、噪声大、绝缘要求高、难以配合,且容易产生谐振。 ( )
A.正确
B.错误
[单项选择]Boeing Co’s Sonic Cruiser, a proposed faster airliner, would be mostly blended material, program director Walt Gillette said recently. In its quest for the (21) to fly 15 to 20 per cent faster than (22) airliners, the US company says about 60 per cent of the new plane’s (23) , including the wing, would be a carbon-fiber-reinforced composite material that is lighter than aluminum for the same (24) . "Composites would (25) almost all of the airplane that you could see from the outside," Gillette said. Composites are well regarded among aeronautical engineers and have been in (26) use since the 1970s. Each generation of planes has more composites, and Gillette (27) that about 10 per cent of Boeing’s (28) civil aircraft, the early-1990s 777, is built (29) the material. (30) still only a proposal, the Sonic Cruiser has (31) the interest of many airlines, which expressed unusual enthusiasm for the ai
A. confirm
B. affirmed
C. assure
D. promis
[单选题]放在网络上观看的图片分辨率一般是( )
A.300像素/英寸
B.150像素/英寸
C.72像素/英寸
D.越高越好
[简答题]羊驼毛皮床毯,由8块经过处理的羊驼的毛片缝制加工而成
[单选题]按照《国家电网有限公司 安全生产巡查工作规定(试行)》的巡查工作程序规定:巡查工作结束后,巡查组成员提交巡查报告经省公司( )审定后,向被巡查单位通报反馈意见,被巡查单位收到巡查报告后,于15日内将整改方案报送省公司( )。
A.党委会
B.安监部
C.安委会
D.总经理办公会
[单项选择]()的粉底亮色应涂抹在额中或下颏。
A. 方形脸型
B. 圆形脸型
C. 菱形脸型
D. 长脸型型
[单选题]对于高氯酸、硫酸、盐酸和硝酸四种酸具有区分效应的溶剂是( )。
A.水
B.吡啶
C.冰醋酸 D乙二胺
[多项选择]关于转关运输的海关规定,下列正确的表述是:
A. 直转方式转关的进口货物应当自运输工具申报进境之日起14日内向进境地海关办理转关手续,在海关限定期限内运抵指运地之日起14日内,向指运地海关办理报关手续
B. 提前报关的进口转关货物应在电子数据申报之日起14日内,向进境地海关办理转关手续
C. 提前报关的出口转关货物应于电子数据申报之日起14日内,办理转关和验放手续
D. 转关运输途中税率和汇率发生重大调整的,各种方式的进口转关货物均适用运抵指运地之日的税率和汇率
[多选题]截割电动机部启动,原因有()。
A.采煤机内部芯线断开
B.主电缆控制芯线断开
C.顺槽磁力启动器故障
D.截割电动机故障
E.略
F.略
G.略
H.略
[单项选择]在舞会上,不论是男士或女士,当一个人单独坐在远离人群的时候,别人便()。
A. 要主动去关心
B. 要主动邀请
C. 不宜去打扰
[单项选择]Resistance to the 1954 United States Supreme Court decision terminating segregation placed the schools in the middle of a bitter and sometimes violent dispute. By 1965, when a measure of genuine integration had become a reality in many school districts, tile schools again found themselves in the eye of a stormy controversy. This time the question was not which children were going to what schools but what kind of education society should provide for the students. The goal of high academic performance, which had been revived by criticisms and reforms of the 1950s and early 1960s, began to be challenged by demands for more liberal and free schooling.
Many university and some high-school students from all ethnic groups and classes had been growing more and more frustrated--some of them desperately so--over what they felt was a cruel and senseless war in Vietnam and a cruel, discriminatory, competitive, loveless society at home. They demanded curriculum reform, improved teaching method
A. social evils existing in the 1950s and 1960s
B. reforms carried out in the educational system
C. pressure for reforming the educational system
D. discriminatory practices against the ethnic groups
[多项选择]下列叙述正确的是()
A. 含有毒性药品的酊剂,每10ml相当于原物的1g
B. 一般的酊剂每10ml相当于原药物的2g
C. 流浸膏剂一般每1ml相当于药物的1g
D. 浸膏剂每1g相当于原中药的2~5g
E. 中药糖浆剂含糖量一般应不低于65%
[单项选择]可用()检查汽缸压力,来判断是否由于压缩比过大导致发动机爆震故障。
A. 燃油压力表
B. 汽缸压力表
C. 机油压力表
[判断题]与带电线路平行、邻近或交叉跨越的线路停电检修,经核对停电检修线路的名称、杆号无误后,工作负责人方可宣布开始工作。( ) (1.0分)
A.正确
B.错误
[单项选择]下面哪种方法常用来保存磁痕显示图形?():
A. 透明漆
B. 透明胶带
C. 照相
D. 以上都是

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