小测验：选择正确的单词

1. A heavy turnout;heavy casualties.
   大产出;重大伤亡
2. No casualties were reported thus far.
   至今为止还没有接到死伤的报告。
3. No casualties were reported following the bomb explosion.
   炸弹爆炸之后未闻有人伤亡的报道。
4. Casualties numbered in the thousands.
   伤亡人员数以千计。
5. Reports from the city described casualties as very heavy.
   来自那城市的报告将死伤情况描述为非常惨重。

　4个名词解释