Their solution was to isolate specific clones of B cells and fuse them with cancer cells.他们的解决方案是分离出特定的B细胞克隆，然后将它们和癌细胞结合。Papain and chymopapain can coagulate soybean protein isolate ( SPI ) , both of them are cysteine pr...
薪材日益昂贵和稀缺,既买不起又拣不到.Fuelwood is becoming too expensive to buy and too scarce to gather.薪材短缺是毁林后果的最明显和最引人注目的实例.Firewood scarity offers the most visible and dramatic example of deforestation's effects....
A polygon with ten sides is a decagon.十条边的形状叫十边形。The frequency polygon is simpler than its histogram counterpart.频率多边形比直方图更简单.What is the perimeter of this polygon?这个多边形的周长是多少?...
在斯堪的纳维亚神话里，月亮被赋予了男性身份。In Norse mythology the moon is personified as male.半轮月亮躲在淡淡的云彩之后。The half moon is hidden behind some wispy clouds.看看那月亮，它真漂亮，不是吗？Look at that moon. Is that beautiful or what?...
经济萧条只不过加速了原本就在改变行业状况的变化。Recession has simply accelerated changes that have been reshaping the industry anyway.计算机与电子行业属于蓬勃发展的产业，需要娴熟的技术人员。Computers and electronics are growth industries and need skilled technicians.吉尔开始从...