Just as Professor Scotti often it, suc

1、（）is often described as the music of s

（）is often described as the music of speech—the way the voice goes up and down as we speak.

2、You should save your work often as a（）

You should save your work often as a（）against computer failure.AsanctionBprecautionCshieldDshelter

3、It was ______ the professor regarded w

It was ______ the professor regarded with such contempt.A he whoB him thatC him whoseD those

4、（）students often find it difficult to

（）students often find it difficult to live in China at first.AOutsideBOverseasCNationalDAbroad

5、How does the effect known as “bank suc

How does the effect known as “bank suction” act on a single-screw vessel proceeding along a narrow channel?（）AIt pulls the stern toward the...

6、Copper is often used as an electrical

Copper is often used as an electrical conductor because it （）.Ahas high resistance at low temperaturesBhas a highly polished surfaceCis able to pass current with little oppositionDholds insulation together well