試題詳解

44 According to the article, what should we do if we happen to be trapped in quicksand?
(A)Swim to the bank as quickly as possible.
(B)Wave our hands violently so that we will keep floating in the quicksand.
(C)Tread down the quicksand to harden it.
(D)Introduce water into the quicksand by moving our feet around slightly.