一般来说，随着服务水平的提高，投入成本将加速增长，即边际成本递增。也就是说将按时交货率从94%提高到98%的边际成本要小。
参考答案：对
根据中文提示写出单词或词组，使句意完整、正确。
小题1:— Could you please do me a favor?
— Sorry. I am ____________ (忙的) now.
小题2:— They are ____________(英雄) in my eyes.
— I agree with you. We should learn something from them.
小题3:—Too much ___________ (噪音) can make you deaf.
— I think so.
小题4:— Long time no see!
— Yeah, I have __________ (参观) Japan for three months.
小题5:— How time flies! It’s June now.
— Yeah, we should try our best to make our dream _____________ (实现).
CI是英文Corporate Identity的缩写，中文直译为“（）”，是企业形象识别的意思。
