基础英语
历年真题
________ from the top of the mountain, the whole city looks very beautiful.
It is ________ that terrorism is a great threat to the world peace.
How teachers perform in their class ________ a strong influence on the growth of the pupils.
The drink tastes a little ________ to me.
market economy
once in a lifetime
the general mass of productions
backbone
places of historical interest
成本效益
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