问题
单项选择题
副螺杆式液压螺旋压力机采用非金属（）形联轴器，重量轻，并具有很好的缓冲好性能。
A.圆
B.矩
C.扇
D.以上都错
答案
参考答案：C
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副螺杆式液压螺旋压力机采用非金属（）形联轴器，重量轻，并具有很好的缓冲好性能。
A.圆
B.矩
C.扇
D.以上都错
参考答案：C
| 改错题。 | |
| The Story about Growth is my favorite American TV play because it is very interested . The play tells humorous stories that happen in the Green's family. With such stories it make people think about life, but therefore attracts the audience. It is also a window which we can learn about American society. And there were many meaningful things that are worth think of,such as the relationship between parents and children in a lot of American family. It is quite different from those in China. The play is very popular. We'd better not to miss the chance to enjoy it. | 1._______ 2._______ 3._______ 4._______ 5._______ 6._______ 7._______ 8._______ 9._______ 10._______ |