阅读36套e26的一道题

owen_srbUID: 3273238

It has long been known that during an El Nino, two conditions exist: (1) unusually warm water extends along the eastern Pacific, principally along the coasts of Ecuador and Peru, and (2) winds blow from the west into the warmer air rising over the warm water in the east. These winds tend to create a feedback mechanism by driving the warmer surface water into a "pile" that blocks the normal upwelling of deeper, cold water in the east and further warms the eastern water, thus strengthening the wind still more. The contribution of the recent model is to show that the winds of an El Nino, which raise sea level in the cast, simultaneously send a signal to the west lowering sea level. According to the model, that signal is generated as a negative Rossby wave, a wave of depressed, or negative, sea level, that moves westward parallel to the equator at 25 to 85 kilometers per day.

For the following question, consider each of the choices separately and select all that apply
3. It can be inferred from the passage that which of
the following would result fairly immediately from
the cessation of the winds of an El Nino?
A Negative Rossby waves would cease to be
generated in the eastern Pacific.
B The sea level in the eastern Pacific would fall.
C The surface water in the eastern Pacific would
again be cooled by being mixed with deep water.
答案是ABC都选了，但是我觉得A肯定是错的啊，根据原文这个Negative Rossby waves应该出现在西部海平面降低的地方，可是选项里明明是in the eastern Pacific和原文不符啊。求解答！

赵非非UID: 2938301

我觉得吧，A是对的，定位在最后一句...that signal is generated as a negative Rossby wave, a wave of depressed, or negative, sea level, that moves westward parallel to the equator ...就是说这个wave 是自东向西移动的，自然是产生于东侧了，不知道这样理解对不对