【单选题】—Excuse me, must I finish my homework now? —No, you _______. You can hand it in tomorrow. [ ]
【简答题】My money__________.I must go to the bank to draw some of my savings out before I’ve none in hand. A.has run out B.is running out C.has been run out D.is being run out
【多选题】蜗轮蜗杆传动机构是通过蜗杆与蜗轮间的啮合,传递运动和动力的机构。它的主要特点是( )。
【简答题】A035阅读下面求质数的程序 import java.lang.Math.*; public class MorePrimesTest{ public static void main( String [] args) { long [] primes = new long[20]; primes[0] = 2L; primes[1] = 3L; long number = 5L; outer: ...
【多选题】蜗轮蜗杆传动机构是通过蜗杆与蜗轮间的啮合,传递运动和动力的机构。它的主要特点有( )。
【单选题】阅读下面求质数的程序 import java.lang.Math.*; public class MorePrimesTest{ public static void main(String[] args){ long[] primes=new long[20]; primes[0]=2L; primes[1]=3L; long number=5L; outer: for(int count=2;...
【多选题】蜗杆传动是一种常用的大传动比机械传动,其主要特点是()