本科毕业生授予学士学位要满足的英语成绩条件以下正确的是（）。

For more than thirty years the statue ______ millions of foreign people arriving by ship to live in the United States.

It took millions of years for order to grow out of the（）of the universe.

The guard, fencing or shielding for moving parts or machinery can be removed for repair only when the machinery it belongs to（）

It took years for Einstein"s theory to gain acceptably .

（）an order for one thousand tons or more we grant a special discount of 10%.

练习17　　Five hundred years ago, news of important happenings—battles lost and won, kings or rulers overthrown or killed—took months and even years to travel from one country to another. The news passed by word of mouth and was never accurate. Today we can read in our newspapers of important events that occur in faraway countries on the same day they happen.

It took ______ for the world to increase its population from 1 billion to 4 billion.

For years, doctors _____ millions of patients’ lives with the help of microscopes:

Radio communication（）for many years and helps to save tens of thousands of lives.

It took years for Einstein"s theory to gain acceptably .

The deviation ordered by the Admiralty for strategic reasons in wartime（）to a general average act，because the masters obeying the order had no opportunity of exercising their own judgment or discretion.