托福词汇440题第359题

　　Lichens, probably the hardiest of all plants, live where virtually nothing else can---not just on rugged mountain peaks but also on sunbaked desert rocks.

　　The word "hardiest" is closest in meaning to which of following?

　　(A) most unusual

　　(B) most basic

　　(C) most abundant

　　(D) most vigorous

　　答案见第2页