51—55CABDD 56—59DCBB 60—63DBCD

64—67ABDA 68—71CABA 72—75BCAB

76.Type 77. Advantages 78. 30 minutes 79. Sony M9

80. big control buttons 81. rewinding 82. little control buttons

83. fewer 84. 285g 85. simple

possible inversion

Great changes have taken place in Hongxing Cotton Mill in the past ten years . It had only 400 workers in 1993, but there are as many as 3,000 now . Now the mill has 75 workshops , but there were only 20 ten years ago . Now the total amount of money the mill makes in a year has reached as much as 28,000,000 yuan , which is 7 times the amount of 1993. In 1993, there were only 9 kinds of products , but today the mill can produce more than 20 kinds . What’s more ,the mill has got rid of the old equipment and introduced much advanced , scientific equipment . Foreign investments are welcome .