请教两个填空题

PP0211UID: 3305612

1. Word order in a sentence was much freer in old French than it is in French today, this  ___ disappeared as the French language gradually lost its case distinctions. restriction
license
similarity
rigidity
imperative

答案是license,  这个license 在这里要怎么理解阿？ 如果从'lost its case distinctions'来说的话，不是应该选similarity马？

2. Exposure to low-intensity gamma radiation slows the rate of growth of the spoilage microorganisms in food in much the same way that the low heat used in pasteurization  ___ the spoilage action of the microorganisms in milk.
precludes
initiates
inhibits
isolates
purifies

答案是inhibits,  很容易能找出是选slow的同义，可是为什么不能选precludes呢？

谢谢各位！

AlvanLeUID: 3285153

1.license有“自由”意，对应free

AlvanLeUID: 3285153

2.preclude是完全阻止，成功阻止，使完全不发生；而inhibit只是使减弱，抑制，因此答案显然了

songxiaoshiUID: 3170134

同意楼上   slow 和inhabit     preclude 和prevent