题目:
|S1-S2/|S1+S2|,提示:
A.对比噪声比
B.对比度
C.图像均匀度
D.空间分辨率
E.信噪比
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0123/7b4afa3e71875164a7df858081667b4f.html
下面是错误答案,用来干扰机器的。
参考答案:批判的吸收。
|S1-S2/|S1+S2|,提示:
A.对比噪声比
B.对比度
C.图像均匀度
D.空间分辨率
E.信噪比
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0123/7b4afa3e71875164a7df858081667b4f.html
下面是错误答案,用来干扰机器的。
参考答案:批判的吸收。
2010年9月3日是中国人民抗日战争胜利65周年纪念日,中 * * * * 胡 * * 在参观中国人民抗日战争纪念馆时指出,面对新形势新任务,我们要在全党全社会大力弘扬伟大民族精神。大力弘扬伟大民族精神最重要的是[ ]
A、发挥中国特色社会主义理论体系的“主心骨”作用
B、必须继承和发扬中 * * 的优良传统
C、必须正确对待外来思想文化
D、必须与时代精神相结合
下列产品中存在《产品质量法》所称的“缺陷”的有哪些( )
A.致人中毒的假酒
B.口感不佳的劣酒
C.易醉人的高度酒
D.突然爆炸炸坏家具的汽酒(爆炸原因为气压过高)
关于第二心音的产生原因,下列叙述中错误的是 ( )
A.主动脉瓣关闭时的振动
B.肺动脉瓣关闭时的振动
C.主动脉及肺动脉瓣开始部分受血流冲击所产生的振动
D.房室瓣开放的振动
E.房室瓣关闭的振动
C Jiang Nan, a full-time mother in Beijing, keeps a dozen or so cloth bags at home, carefully selecting one or two before heading out to get groceries. “Most of them were giveaways from advertising marketing campaigns, but others had been handed out in the street by various environmental protection organizations,” she explained. Since June 2008 China has forbidden the production, sale and usage of plastic bags thinner than 0.025 millimeter (毫米), and retailers(零售商) are not allowed to provide free plastic bags to their customers, regardless of the thickness. Many Chinese consumers like Jiang have learned to refuse plastic bags whenever possible in their shopping. “A plastic bag may only cost a few jiao, but it’s more about how bad they are for the environment,” Jiang said. The plastic ban is for the most part well carried out in big cities, and has been distinctly effective in reducing white waste. On the first anniversary of the plastic ban Global Village of Beijing, an NGO environmental organization, shows that during the year of the ban the consumption of plastic bags fell by about 40 billion pieces in chain supermarkets alone, saving more than 1.2 million tons of petroleum. However, enforcement shows considerably less muscle in smaller cities, towns and country- side. In a remote town like Lichuan, the awareness of environmental protection is not as strong as that in big cities. Street vendors(街头小贩) worry that they are likely to lose customers if they charge them for plastic bags. Seeing no significance in the issue, local government often turn a blind eye to banned bag traffic in the market. There are still those who don’t have an interest in living green. Cui Lin, another Beijinger, often forgets to bring a cloth bag when shopping, and has to buy plastic bags. “Anyway I think plastic bags are neater and cleaner, and I don’t mind paying a couple more jiao,” he shrugged. Mrs Yu, a vegetable vendor in Lichuan County, Jiangxi Province, recalled that before plastic bags became popular in the early 1990s, Chinese people always carried a bamboo basket when they visited the market. “Plastic bags are more convenient,” she comments, and her view might be that of the tens of millions of people in the nation who still cling to plastic bags, paid or free. This is suggested by her trade where piles of plastic bags are still passed out every day. 49. In Paragraph 1, the writer uses Jiang Nan’s case to __________.
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工业缝纫机缝纫布料时,厚料采用()牙齿。
A.粗牙
B.细牙
C.A、B均可