更多“对影像半影模糊的控制阈值为()”相关的问题
()非常适宜通过书面形式保留存档，以方便日后查证。
A、闲聊
B、档案
C、合同
D、历史资料
此题为多项选择题。
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静态评价指标包括 ______。
A．财务内部收益率和偿债能力
B．静态投资回收期和投资收益率
C．投资收益率和财务净现值
D．净现值和净现值率
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有关脑血栓形成患者的护理评估，不正确的是（）。
A.安静状态下发病
B.晨起出现半身瘫痪
C.有动脉粥样硬化病史
D.可有发声障碍
E.有严重意识障碍
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A . 引起手足口病的病毒是手足口病毒
B . 不耐强硷，紫外线可降低病毒活性
C . CV-A16和EV-A71最为常见
D . 重症及死亡病例多由EV-A71所致
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某旅行社组织了“重走霞客路”大型旅行考察活动。下为考察路线示意图，据此回答问题。旅行考察队员们队沿线四地农业可持续发展提出了建议，其中合理的：（）。
A.甲地——立足气候优势，发展花卉生产
B.乙地——利用土地优势，发展粮食生产
C.丙地——瞄准国际市场，发展出口农业
D.丁地——退耕还林还草，发展立体农业
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货物托运人不得伪报品名托运或者在货物中夹带危险物品。（）
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放线时，架线车必须（）前进
A . 匀速
B . 加速
C . 减速
D . 忽快忽慢
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5、建筑耐久等级二级指的是A. 100 年B. 50-100 年C. 25-50 年D. 150年
Each year there is an increasing number of cars on roads and streets as millions of new cars are produced. One out of every six Americans works at putting together the parts of cars, driving trucks, building roads of filling cars with gas. Americans won"t live without cars!Most Americans find it hard to think what life would be without a car. However, some have realized the serious problem of air pollution by cars. The polluted air is poisonous (有毒的) and dangerous to health.One way to get rid of (排除) the polluted air is to build a new kind of car. That"s what several of the large car factories are trying to do. But to build a clean car is easier said than done. Progress in this field has been slow.Another way is to take the place of the car engine (发动机) by something else. Engineers are now working on some new cars. Many makers believe that it will take years to develop a practical model that pleases man.To prevent the world from being polluted by cars, we"ll have to make some changes in the way many of us live. Americans, for example, have to cut down on the number of their cars. They are encouraged to travel and go to work by bike. Riding a bike is thought to help keep the air clean.But this change does not come easily—a large number of workers may find themselves without jobs if a car factory closed down. And the problem of air pollution would become less important than that of unemployment (失业).Although cars have brought us a better life, they have also brought us new problems.
A．A New Way to Get Rid of Polluted AirB．Cars and Polluted AirC．Many Serious Problems in the USAD．Changes in Car Production
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“求同质”原则，是指佩戴两件或者三件饰品，应使其质地相同。（）
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测定正视眼的近点距离为20cm，其调节力为（）
A.10D B.10D C.5D D.1D E.1.5D
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单作用叶片泵的特点之一就是通过改变偏心距，可以改变泵的输入流量。
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建筑砂浆由＿＿＿＿、＿＿＿＿和＿＿＿＿等材料按适当比例配制而成，它和混凝土在组成上的差别仅在于＿＿＿＿。
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可作片剂润滑剂的是（）
A.淀粉
B.聚维酮
C.硬脂酸镁
D.硫酸钙
E.预胶化淀粉
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