Quartz glass, also called fused silica, is used in manufacturing ...

★ TOEFL Adjective and Adverb

Quartz glass, also called fused silica, is used in manufacturing . . . temperature fluctuation.

A. minimize

B. to minimize that

C. to minimize

D. minimize to

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Grown today as an energy source . . . for its oil, the coconut palm has been a staple in tropical regions for centuries.

A. so that

B. as well as

C. together

D. much like