题目内容:
WhatdoesPhanmeanbysaying"acascadeofincreasingriskfactors"(Line1,Para.4)? A.Theriskfactorswillincreaseatalargescale.
B.Theriskfactorswillbecomeacascade.
C.Theriskfactorswillincreasebecauseofcascade.
D.Theriskfactorswilldecreasebecauseofcascade.
参考答案:
答案解析: