题干
The coat I bought yesterday is not expensive at all. As a matter of fact, I would gladly have paid for it.
A：as much twice
B：much as twice
C：as twice much
D：twice as much
答案(点此获取答案解析）
D
的正方形硬纸，按各边中点垂直折起四个小三角形，做成一个蛋巢，半径为1鸡蛋（视为球体）放入 其 中，则鸡蛋中心（球心）与蛋巢底面的距离为 （ ）