狭义的合同变更是在( )不变的前提下,在合同没有履行或没有完全履行前,由于一定的原因,由当事人对合同约定的权利义务进行局部调整。
A.客体B.权利C.主体D.义务
参考答案:C
I tried to come closer to watch the bird, but as soon as it noticed me, ______ into the woods. [ ]
A. did it fly away
B. did away it fly
C. away it flew
D. away flew it
属于阿片类物质的是()
A.酒精
B.可卡因
C.海洛因
D.丙酮
E.仙人掌毒素