语法与词汇 A flood of ice would then surge into the Southern Sea. With the continued rise in sea level, more ice would plunge into the ocean, causing sea levels to rise even higher, which in turn would release more ice and set in motion a vicious cycle.
【正确答案】 A
【答案解析】句意：一支冰川会在之后汇入南海。随着海平面的持续上升，更多的冰块会陷入海洋，导致海平面进一步上升。这反过来会释放更多的冰块，造成一种恶性循环。plunge此处为“陷入；汇入”之意，与drop（落入，投入）意思相近。extend延伸。melt融化。drift流动。因此，本题正确答案为A。