— Here is a new edition of Crazy English. Do you want to look at it?

— _____! Let me see it. [ ]

A. By and by

B. Not really

C. Mind your own business

D. By all means

混凝土浇筑后，利用（）及水泥（）的热量，并采取适当的保温措施延缓混凝土冷却。