哪位好人帮忙做个完型填空啊~!急~!Tounderstandwhy71fromthelaser(激光)issointense(强烈的),youmustknowthatlight72inwaves,likeripples(涟漪)onapond.The73fromthecrest(浪峰)ofonewavetothecr

Question

哪位好人帮忙做个完型填空啊~!急~!
To understand why 71 from the laser (激光) is so intense (强烈的) , you must know that light 72 in waves , like ripples (涟漪) on a pond . The 73 from the crest (浪峰) of one wave to the crest of the 74 is the wavelength . Ordinary white light is 75 many wave lights , 76 is the same as saying as many colors . Its 77 travel in every direction . Laser light , 78 , is one of wavelength and one color , with all the waves moving in one 79 . They stay together within a straight , narrow beam (细浪) , 80 fanning out like a flashlight beam (光柱) .
Laser will have a greater and greater 81 on our lives as more uses are 82 for them . The Western Electric Company , 83 , now uses a ruby (红宝石) laser to pierce (刺透) 84 in tiny diamonds . Since diamonds is the world’s hardest 85 , the piercing process 86 two days . 87 the laser can pierce a diamond 88 a few minutes . For telephone use , copper (铜) wire is made as 89 as human hair by being drawn 90 the diamond . In one year the company produces 30 million miles of this wire and finds out thousands of diamonds
71. A. sound B. weight C. light D. electricity
72. A. carries B. travels C. stays D. walks
73. A. distance B. depth C. place D. width
74. A. last B. first C. next D. second
75. A. made into B. made for C. made from D. made up of
76. A. which B. that C. where D. what
77. A. colors B. waves C. speed D. time
78. A. from time to time B. on the contrary C. on the other hand D. sooner or later
79. A. a way B. direction C. side D. level
80. A. in need of B. because of C. by means of D. instead of
81. A. effect B. affect C. effort D. offer
82. A. looked B. founded C. found D. made
83. A. such as B. for example C. in a word D. as usual
84. A. holes B. pictures C. caves D. jewels
85. A. rock B. subject C. material D. metal
86. A. used to taking B. used to take C. is used to take D. is used to taking
87. A. So B. And C. But D. For
88. A. in B. after C. before D. about
89. A. long B. thin C. light D. expensive
90. A. through B. in C. with D. by

Answer 1

CBACD ABBBD ABBAC BCABA
自己做的,未必那么准