题目

The entire country was _______with grief for the eighteen firefighters and one guide who were killed in Liangshan mountain fire. A . accumulated B . distributed C . spoiled D . overcome 答案：D5．把一个圆平均分成若干个小扇形，再拼长成一个近似的长方形，这个长方形的长是3.14分米，则这个圆的半径是1分米，周长是6.28分米，面积是3.14平方分米．