There was a bridge crossing a big river from west to east. It1a man five minutes 2 it. There was a pavilion(凉亭)3the middle of the bridge with a soldier4. He came out5three minutes.6he saw somebody crossing the bridge, he would tell him to go7, not permitting(限制)him to cross. A clever man thought of a8idea, and crossed the9at last. What10did the clever man think of to cross the bridge?

—So it is. It's made _______ grapes, and they can be made _______ many other foods.

下图反映了某时期我国公私经济成分的比例情况，这种情况最早应出现于（    ）