更多“关于反映、信息和选择的关系，下列论断正确的是( )。 ”相关的问题
创新成果必须具有新理论、新方法、新产品，不是对别人成果的复制或照抄。
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传染期是指
A．患者排出病原体的整个时期
B．患者的整个病程
C．患者的潜伏期+恢复期
D．患者的临床症状期
E．自接触传染源到完全康复的整个时期
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男性，50岁。胆囊结石，拟行胆囊切除术，以往有慢性乙肝病史。预防手术中胆心反射以下哪种方法不正确（）。
A.术前用药阿托品 B.防治低血压 C.防止麻醉过浅、缺氧 D.胆囊三角区封闭 E.抽空胃内容物
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《建筑法》规定，申请领取建筑工程施工许可证具备的条件包括：( )。
A．已经办理用地批准手续
B．已委托监理
C．拆迁完毕
D．建设资金落实
E．已确定建筑施工企业
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中共青岛市委经济技术开发区工作委员会坚持“()”。
A.外派为主、内选为辅B.一方隶属、多重管理C.内选为主、外派为辅D.一方管理、多重隶属
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C++的五种基本数据类型int、char、float、double和long int所占内存空间大小的关系是______。
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A . 激励和鼓舞B . 监督执行情况C . 组织人员解决问题
D . 制订计划
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Passage Five The most noticeable trend among today’s media companies is vertical integration—an attempt to control several related aspects of the media business at once, each part helping the other. Besides publishing magazines and books, Time Warner, for example, owns Home Box Office (HBO), Warner movie studios, various cable TV systems throughout the United States and CNN as well. The Japanese company Matsushita owns MCA Records and Universal Studios, and manufactures broadcast production equipment. To describe the financial status of today’s media is also to talk about acquisitions. The media are buying and selling each other in unprecedented numbers, and forming media groups to position themselves in the marketplace to maintain and increase their profits. In 1986, the first time a broadcast network had been sold, two networks were sold that year—ABC and NBC. Media acquisitions have skyrocketed since 1980 for two reasons. The first is that most big corporations today are publicly traded companies, which means that their stock is traded on one of the nation’s stock exchanges. This makes acquisitions relatively easy. A media company that wants to buy a publicly owned company can buy that company’s stock when the stock becomes available. The open availability of stock in these companies means that anybody with enough money can invest in the American media industries, which is exactly how Rupert Murdoch joined the media business. The second reason for the increase in media alliances is that beginning in 1980, the Federal Communications Commission (FCC) gradually deregulated the broadcast media. Before 1980, for example, the FCC allowed one company to own only five TV stations, five AM radio stations, and five FM radio stations; companies also were required to hold onto a station for three years before the station could be sold. The post-1980 FCC eliminated the three-year rule and raised the number of broadcast holdings allowed for one owner. This trend of media acquisitions is continuing throughout the 1990s, as changing technology expands the market for media products. The issue of media ownership is important. If only a few corporations direct the media industries in this country, the outlets for differing political viewpoints and innovative ideas could be limited.
A．The changing technology employed by the media.B．The media’s increasing profits in the marketplace.C．The ever tougher regulations of the FCC on the media since 1980.D．The availability of the media’s stocks on stock exchanges.
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《邮政法》赋予邮政通信企业对（）的寄递业务的专营权。
A.函、包、汇、报刊
B.函件
C.信件
D.其他具有信件性质的物品
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在Matlab中,命令trapz(x,y)里的x,y的数据类型是:
A . 数组,符号变量B . 数组,数组C . 符号变量,数组D . 符号变量,符号变量
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下列氨基酸中，通过Glu与OAA转氨后生成的氨基酸是（）。
A.Glu B.Ala C.Thr D.Asp E.Gly
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下列哪种树叶片最长（）
A.水蜡
B.火炬树
C.花楸
D.胡桃楸
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设备启动过程中发现缺陷，可用事故抢修单进行处理。
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渐开线直齿圆柱齿轮的正确啮合条件是两齿轮 和 必须分别相等。
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