第3 道:OG11th90题
The peaks of a mountain range, acting like rocks in a streamed, produce ripples in the air flowing over them; the resulting flow pattern, with crests and troughs that remain stationary although the air that forms them is moving rapidly, are known as “standing waves”
C crests and troughs that remain stationary although the air that forms them is moving rapidly, is
D stationary crests and troughs although they are formed by rapidly moving air, is
这道题我知道D应该排除,因为D中they 指代不清楚,而且用了被动语态。
但我对C还有疑问,就是crests and troughs that remain stationary和stationary crests and troughs这两个表达哪个更清楚,个人认为后者更好,还有一点是关于C中them 的指代,大家认为这个别them 指代清楚吗?我觉得还是有点模糊哦,them有可能指crests,或者是troughs,还可能是两者一起,难道C不也是有问题的吗? |