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【单选题】
耐受性定律是
A.
任何生物的生物量决定于所存在环境中该生物生长所需的最低浓度营养,适用于“稳定状态”的环境
B.
每种生物生长繁殖只能耐受一定范围的生态因子,生态因子在数量和质量上的不足或过多均可影响微生物的存亡
C.
生物对生态因子所能耐受的最大值和最小值之间的范围
D.
将谢氏耐受定律与的限制因子定律结合起来的产物
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【单选题】眼及眼眶MRI扫描得到斜矢状位影像时,其定位像及扫描基线分别是( )
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以冠状面为定位像，扫描基线平行于成像侧视神经前后轴
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以横断面为定位像,扫描基线平行于成像侧视神经前后轴
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