证
参考答案：
对疾病所处一定阶段病位、病因、病性、病势等所作的病理性概括，称为证。
Hardly had she walked out of the woods she heard the strange scream coming from behind a tree. [ ]
A. until
B. since
C. when
D. than
军事设施是指国家直接用于（）目的的建筑、场地和设备。
A、国防
B、军事
C、作战
