英语高手请进！完形填空真题（99）2，谢谢解答！

英语高手请进！完形填空真题（99）2，谢谢解答！
希望各位前辈能够帮助我，谨慎作答，因为我会完全相信你们的答案的！（一定要教我做题思路和方法哈）谢谢！
The world is pretty complicated today 51 what is was forty years 52 And it's getting more so all the time .We haveto 53 more and more specially 54 people. We need them to solve the toughproblems of science.We need them to find new ways to 55 disease ,to design the machines of industryand the 56 gadgets of the home. And we need them more andmore for the ordinary things of everyday life.
It 57 special training to be a good carpenter,orplumber,or car mechanic.Jobs in electronics 58 even greater skills.We 59 a radio repairman had to have a pretty 60 kind of training .But it's even tougher to bea television repairman.
Some of you are 61 thinking , “That’s all right 62 technical people”.But suppose I want to be anartist, a druggist, or a nurse.Suppose I want to go in business for myself.what good will math 63 me? All right , let’s see.
Many artists today are in 64 is called applied art. They use their 65 in advertising, interior decoration ,somesimilar job .But people in 66 who hire the artists for that kind of work saythat simple artistic ability is not enough. 67 lots of young people who have that .But not 68 ofthem know anything about physics,or mechanical thing ,or math.
69 a druggist you have to study chemistry.Youcan’t learn chemistry 70 knowingsomething about algebra.