考博考试

试题来源：考博英语-24
【单选题】 All the references she has obtained for her doctoral dissertation ______ about twenty items.
A．make up for
B．add up to
C．come up with
D．put up with

参考答案：B
网考网解析：
add up to 总计达；make up for补偿；come up with赶上，提出；put ... 查看试题解析出处>>