对于重介旋流器最好使用（）给料。

A.电振给煤机

B.刮板输送机

C.皮带给煤机

D.斗提机

Read the statement and the instructions that follow it, and then make any notes that will help you plan your response. Write your response on a separate sheet of paper. If possible, type your essay on a word processor.
People value things more when they have suffered for them.
Discuss the extent to which you agree or disagree with the opinion stated above. Support your views with reasons and/or examples from your own experiences, observations, or reading.