单项选择题The trainees were given copies of a finished manual to see whether they could themselves begin to()the inflexible, though tacit, rules for composing more of such instructional materials.
A. design B. revise C. disrupt D. derive
单项选择题Price()is at the top of the factors contributing to the rise of construction cost in the area after the earthquake.
A. flaw B. fraud C. flake D. fore