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董仲舒以研究()闻名天下。
某企业从事服装生产,非国家限制和禁止行业,有职工80人,由于其账制不健全,税务机关按照规定采取核定征收方式征收企业所得税。核定的应税所得率为15%,2010年度收入总额10万元,资产总额1500万元,该企业认为符合小型微利企业的税收优惠,所以在所得税汇算时现行优惠政策申报缴纳企业所得税,请分析企业申报是否正确。
关于牙龈卟啉单胞菌的生物特性,哪种叙述是正确的( )
某预应力混凝土屋架,混凝土强度等级为C40,屋架下弦采用后张法一端张拉。当混凝土达到设计规定的强度后张拉预应力钢筋(采用超张拉),预应力钢筋采用钢绞线(fptk=1720N/mm2,fpy=1220N/mm2,En=195000N/mm2)。钢绞线面积Ap=593mm2。设由混凝土收缩,徐变引起的预应力损失为105N/mm2,由锚具变形和孔道摩擦引起的预应力损失为78N/mm2,构件净截面面积An=43080mm2,则混凝土有效预压应力σpc最接近于( )。提示:设张拉控制应力σcon=0.7fptk。
扶梯紧急停止按钮如何使用?
水稻的不同发育阶段,对白叶枯菌的抗病性是一致的。
丝绸之路经济带也是文化带,文化的汇通是推进丝绸之路经济带建设的一条捷径。这说明()。
为研究风对高层建筑物的影响,在风洞中进行模型实验,当风速为9m/s时,测得迎风面压强为42Pa,背风面压强为-20Pa,试求温度不变,风速增至12m/s时,迎风面和背风面的压强分别为()。
配送中心在选址时,还应掌握下列费用:()
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