public class Yippee { public static void main(String [] args) { for(int x = 1; x A: No output is produced. 123 B: No output is produced. 234 C: No output is produced. 1234 D: An exception is thrown at runtime. 123 E: An exception is thrown at runtime. 234 F: An exception is thrown at rijntime. 1234
public class Yippee { public static void main(String [] args) { for(int x = 1; x A: No output is produced. 123 B: No output is produced. 234 C: No output is produced. 1234 D: An exception is thrown at runtime. 123 E: An exception is thrown at runtime. 234 F: An exception is thrown at rijntime. 1234
化简[(X+1/X)^6-(X^6+1/X^6)-2]/[(X+1/X)^3+(X^3+1/X^3)]
化简[(X+1/X)^6-(X^6+1/X^6)-2]/[(X+1/X)^3+(X^3+1/X^3)]
高数:若f(x),g(x)在[a,b]区间连续,F(x)=[a,x定积分区间]g(x)d(x)*[b,x定积分区间]f(x)d(x).
高数:若f(x),g(x)在[a,b]区间连续,F(x)=[a,x定积分区间]g(x)d(x)*[b,x定积分区间]f(x)d(x).
设f(x)=x2,x∈[-1,1]2-x,x∈[1,2],则∫2-1f(x)dx=( )
设f(x)=x2,x∈[-1,1]2-x,x∈[1,2],则∫2-1f(x)dx=( )
[lncos(x-1)]/[1-sin(πx/2)]x≠1
[lncos(x-1)]/[1-sin(πx/2)]x≠1
顺序执行下列命令后,显示的结果是( )。x= ’234’str="2015年新春音乐会" SUBSTR(str,LEN(x -x)+1,4) A: 新春 B: 新春音乐 C: 2015 D: 音乐
顺序执行下列命令后,显示的结果是( )。x= ’234’str="2015年新春音乐会" SUBSTR(str,LEN(x -x)+1,4) A: 新春 B: 新春音乐 C: 2015 D: 音乐
正确表达X∈(-1.2,3.5]的表达式是 。 [A] 3.5>=X>-1.2 [B] X<=3.5.or.x>-1.2 [C] X<=3.5.and.x>-1.2 [D] X<-1.2.and.a>3.5 A: 错误 B: 错误 C: 正确 D: 错误
正确表达X∈(-1.2,3.5]的表达式是 。 [A] 3.5>=X>-1.2 [B] X<=3.5.or.x>-1.2 [C] X<=3.5.and.x>-1.2 [D] X<-1.2.and.a>3.5 A: 错误 B: 错误 C: 正确 D: 错误
设f(X)及g(X)在[a,b]上连续(a<b),证明:(1)若在[a,b]上f(x)>=0,且∫f(x)dx=0,则在[a,b]上f(x)恒等于0(2)若在[a,b]上f(x)>=g(x),且∫f(x)dx=∫g(x)dx,则在[a,b]上f(x)恒等于g(x)
设f(X)及g(X)在[a,b]上连续(a<b),证明:(1)若在[a,b]上f(x)>=0,且∫f(x)dx=0,则在[a,b]上f(x)恒等于0(2)若在[a,b]上f(x)>=g(x),且∫f(x)dx=∫g(x)dx,则在[a,b]上f(x)恒等于g(x)
已知x= -18/256,写出[x]补=______ ,[x/2]补=______
已知x= -18/256,写出[x]补=______ ,[x/2]补=______
已知列表lst=[ [‘苹果’,’红色’] , [‘葡萄’,’紫色’] , [‘草莓’,’红色’] ],则以下能够获取所有水果名称列表的表达式是: A: [ x[0] for x in lst ] B: [ x[1] for x in lst ] C: [ x(0) for x in lst ] D: [ x for x in lst if x==’水果’]
已知列表lst=[ [‘苹果’,’红色’] , [‘葡萄’,’紫色’] , [‘草莓’,’红色’] ],则以下能够获取所有水果名称列表的表达式是: A: [ x[0] for x in lst ] B: [ x[1] for x in lst ] C: [ x(0) for x in lst ] D: [ x for x in lst if x==’水果’]