问题
单项选择题
属于硬地层的岩石是（）。
A、泥岩
B、砂岩
C、盐岩
D、硬石膏
答案
参考答案：B
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属于硬地层的岩石是（）。
A、泥岩
B、砂岩
C、盐岩
D、硬石膏
参考答案：B
What is it that you love to do but never feel that you get it quite right? Perhaps you don't even try any more because you think what you do is not 1 enough． Discouragement seems to follow us a good part of the time, because whatever it is that we work so hard doing, it seems that there is always someone else who can do it much 2． I have always enjoyed music and it is 3 to me that every musician has a 4 of their own．My father__5 several instruments and when he played with others, it was not difficult to 6 his sound in a group．Whether it was guitar or another instrument, he had his own 7 sound． I once read of a music teacher who commented to a discouraged student, “ Nobody else can make the sound that you make.” The sound that you make may not be the same as someone else's but who is 8 which is better. It is said that “ 9 is in the eye of the beholder.” Perhaps it could be said that “A delightful sound is in the ear of the 10 .” Every person has a different tone of voice that 11 only to them, and we all know people with an unforgettable laugh or a way of 12 that is unique to them．It might not be the sound of your music or your voice at all．It might be the way you whistle or the sound of your footsteps． Each person has a（an） 13 on the world in some ways．Someone else can do what you do, but they cannot do it 14 the same way that you do it．The next time you feel 15 , remember "Nobody else can make the sound that you make．"
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