罗马法
参考答案：是指罗马奴隶制国家的全部法律，存在于罗马奴隶制国家整个历史时期的法律。
Clinical evidence began to ________， suggesting that the new drugs had a wider range of useful
activities than had been predicted from experiments in animals.[ ]
A. operate
B. strengthen
C. approve
D. accumulate
云高的观测对象包括（）
A.低云中云
B.高云
C.A.B都对
D.A.B都错
