把x^5+y^5+z^5用初等对称多项式表出后,下列哪一项不会出现?()
A: 0
B: 1
C: 2
D: 3
A: 0
B: 1
C: 2
D: 3
举一反三
- 把x^5+y^5+z^5用初等对称多项式表出后,下列哪一项不会出现?()
- 把x^5+y^5+z^5用初等对称多项式表出后,下列哪一项不会出现?() A: s1^5 B: s2s3 C: s1s2s3 D: s1^2s3
- 把f(x,y,z)=x^4+y^4+z^4用初等对称多项式表出(__)
- intx=5,y=8,z=7;表达式z=!(x>y)||(x=1,y=3)计算后的结果 A: x=1,y=3,z=1 B: x=1,y=3,z=0 C: x=5,y=8,z=0 D: x=5,y=8,z=1
- 执行以下语句的结果：dict1={"x":1,"y":2,"z":3}dict2={"x":4,"a":5}dict1.update(dict2) A: {"x":1,"y":2,"z":3,"x":4,"a":5} B: {"x":4,"a":5,"x":1,"y":2,"z":3} C: 有重复项，结果有误！ D: {"x":4,"y":2,"z":3,"a":5}