考博考试

试题来源：考博英语-214
【单选题】 It is always useful to have savings to ______.
A．come out in
B．live up to
C．make a fuss of
D．fall back on

参考答案：D
网考网解析：
[解析] A、B、c三项不合题意：come out in以……方式出来；live up to不辜负，遵守；make a f... 查看试题解析出处>>