倒一杯酒，轻轻摇杯，让酒液在杯壁上均匀地转圈流动，停下来酒液回流，稍微等会儿，你就会看到摇晃酒杯的时候，酒液达到的最高的地方有一圈水迹略为鼓起，慢慢地就在酒杯的壁面形成向下滑落的酒液，象一条条小河，这就是（）。

herere two buildings, _______ stnds nerly hundred feet high.the lrger B．the lrger of them C．the lrger of which D．the lrger one thtA．the largerB．the larger of themC．the larger of whichD．the larger one that