a number system of base,or radix,r is a system that uses distinct symbols for r digitshope not "多项制度的基础,或根, r是一套系统,用鲜明的符号科研两位数"

翻译the system of number 翻译这句话:the number of hours a system ……the number of hours a system is available for use by customers and employees 英语翻译The survivability of the system is shown to improveover a baseline system,with a larger number of runs leading to greater improvement. （）students like singing the song A number of B a number of C thenumber of [ ]of students [ ]to go to beijing universitya a number ,wants b a number ,wantc the number ,wantsd the number,want What's __________ people in Australia?A. the number of B. a number of C. number D. the population of There are () stamp-collectors in our class A the number of B a number OF c NUMBERS D NUMBER OF Exercise 1.Consider the following system of linear equations where a is a number:2x + 3y - z = a-4x - 6y = a-x- z = a注：这仨是个方程组 大括号打不进来a) For what values of a does the system above have a unique solution?b) For what val the number of,a small number of,a number of. ( )students( ) learning English hard.A.The number of;is B.The number of;are C.A number of;isD.A number of;are a number of the number of Look!( )children( )playing on the playground.A:The number of;are B:the number of;is C：a number of;are D:a number is We took___pictures of his familyA.many of B.a number of C.the number of D.a large amount of A number of people were reported to__in a series of explosions .A number of people were reported to__in a series of explosions on London's transport system on Thursday morning.A.had been killedB.have been killedwhy we choose a growing number of a.number.of?用法 a small number of a number of 造句