更多“商流与物流可以互相结合，也可以互相分离，它们的流通线路是结合”相关的问题
当纳入的各研究间异质性较好，可以选择固定效应模型，即（）
A.P值>0.1或I方<50%时
B.P值>0.1或I方>50%时
C.P值<0.1或I方>50%时
D.P值<0.1或I方<50%时
E.以上都不正确
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Unlike most sports, which evolved over time from street games, basketball was designed by one man to suit a particular purpose. The man was Dr. James Naismith, and his purpose was to invent a vigorous game that could be played indoors in the winter. In 1892, Naismith was an instructor at a training school, which trained physical education instructors for the YMCAs. That year the school was trying (1)______up with a physical activity that the men could enjoy (2)______ the football and base ball seasons. None of the standard indoor activities (3)______their interest for long. Naismith was asked to solve the problem by the school. He first tried to (4)______some of the popular outdoor sports, but they were all too rough. The men were getting bruised from tackling each other and (5)______hit with equipment. So, Naismith decided to invent a game that would incorporate the most common elements of outdoor team sports without having the real physical contact. Most popular sports used a ball. So he chose a soccer ball because it was soft and large enough that it (6)______no equipment, such as a bat or a racket to hit it. Next he decided (7)______ an elevated goal, so that scoring would depend on skill and accuracy rather than on (8)______ only. His goals were two peach baskets, (9)______to ten-foot-high balconies at each end of the gym. The basic (10)______of the game was to throw the ball into the basket. Naismith wrote rules for the game, (11)______of which, though with some small changes , are still (12)______effect. Basketball was an immediate success. The students (13)______it to their friends, and the new sport quickly (14)______on. Today, basketball is one of the most popular games (15)______the world.
A．beingB．to beC．beenD．were
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不计算在产品成本法适用于月末没有在产品的产品。
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CaO+SiO2→CaSiO3是一种氧化还原反应。
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回热循环的热效率较同参数朗肯循环的热效率（）。
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为了区分有效帧和碎片垃圾，802.3协议规定有效帧必须至少有（）字节长。
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液体静压轴承薄膜节流间隙大小的改变，根据结构的不同可（）节流器的体壳平面或节流圆台平面。
A.手工研磨
B.手工刮削
C.手工锉削
D.气焊切割
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从黄金的商品属性分析自1971年以来的黄金月度波动显示，一般情况下黄金在（）间通常呈现上涨走势。
A.1—2月
B.3—4月
C.5—6月
D.8—9月
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钻头入钻头盒应采用（）。
A.提升护丝
B.专用钻头提丝
C.人工
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关于Python语句P=-P,哪个选项的描述是正确的?
A. P=0 B. P等于它的负数 C. P的绝对值 D. 给P赋值为它的负数
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票据的取得，必须（），即应当给付票据双方当事人认可的相对应的代价。
A.诚实信用 B.给付对价 C.为客户保密 D.真实有效
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基因表达的时间特异性指的是多细胞生物个体在某一特定生长发育阶段，同一基因在不同的组织器官表达不同。 ( )
A．正确
B．错误
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二类放射性物品，是指Ⅱ类和Ⅲ类放射源、中等水平放射性废物等释放到环境后对人体健康和环境产生一般辐射影响的放射性物品。
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下列各项中属于社区护理范畴的有（）
A.家庭护理
B.免疫接种
C.成人健康评估
D.职业卫生护理
E.医院感染预防
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