cxd书上的 support

w2222w

Many geologists theorize that the trail of volcanic craters and cinder cones along the Snake River plain of southern Idaho was produced as the North American continent slid westward over a stationary “plume”, a vertical channel through which molten rock rose intermittently from the Earth’s core to burst through its curst.
Which of the following, if true, tends to support the geologists’ theory of how the trail was produced?
(A) The largest craters and cinder cones are on the eastern margin of the trail.
(B) The most violent volcanic activity apparently occurred at the western margin of the trail.
(C) The craters and cinder cones are evenly spaced throughout the extent of the trail.
(D) The newest craters and cinder cones are on the eastern margin of the trail.
(E) The craters and cinder cones on the western margin of the trail generally took longer to form than did those on the eastern margin.

这意思逻辑看的挺明白

d,e区别看的不是很明白 有个slid 我觉的东西比较下是不是更好点

东边最新 东边比西边新 有什么本质的区别呢 generally不够绝对么???

还望各位大侠一针血 一剑封喉