题目

According to the information in the third paragraph, which of the following improvements made it possible to lengthen the tone produced by the piano?()

A

The introduction of pedals

B

The use of heavy wires

C

The use of felt-padded hammerheads

D

The metal frame construction

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事实细节题。全文最后一句话中“ the introduction of pedals to sustain tone”表明了踏板的使用使得钢琴的音色延长。

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11

【单选】

With which aspect of British Columbia is the passage primarily concerned?()

A

 Its climate

B

 Its culture

C

 Its geography

D

Its history

In which part of British Columbia can a mild climate be found?()

A

 In the southwest

B

Inland from the coast

C

 In the north

D

On the entire west coast

In Paragraph 5, the word"heavily"could best be replaced by which of the following?()

A

Widely

B

Densely

C

Chiefly

D

Largely

Which of the following is NOT mentioned as a tree found in British Columbia?()

A

Hemlock

B

 Cedar

C

 Fir

D

Pine

What effect do the mountains have on winds?()

A

Make them dry.

B

Make them wet.

C

Make them cool.

D

 Make them weak.

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