海潮的涨落the ebb and flow of the tide海潮的涨落确实是个奇观.The ebb and flow of the sea is certainly a sight to behold.其在液体中的迁移有赖于一种微弱的无规性, 即统计涨落.Its migration through the liquid depends on slight irregularities, or statistical fluctua...
实际上并无差别.There is practically no difference.无差别曲线可以与地图上的等高线相比拟.The indifference curve may be compared with a contour line on a map.两组的并发症发生率无差别 ( P0.05 ).And there were no difference of frequency of complication ( P > 0.0...