题目内容

每个员工在原有速度上提高一点点，整个公司的效率就会提高一大截（）

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翻译：By making vehicles lighter in weight aluminum has greatly reduced the amount of fuel needed to move them, （Passage Two）

What he had done is _______

A. value
B. of valuable
C. of no value
D. of no valuable

因为没有私心，才会乐意付出，才会随时伸出援助之手而不求回报，才会对自己分外的工作也会尽力尽责（）

翻译：As the source of aluminum is almost inexhaustible, we can expect that more and more uses will be found for this versatile metal. （Passage Two）