单项选择题
Since Japan（）importance to education and technological innovation, its economy has developed at a high speed.
A. relates B. applies C. attaches D. connects
单项选择题 I want to（）a slightly different issue which is related to Anna's question earlier about our different meanings of open-ended problems.
单项选择题 A careful （）of the house revealed no clues.
单项选择题 Many scientists remain（）about the value of this research program.
