![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
I oftenonSaturdays()
A.play sports
B.plays sports
C.playing sports
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
C、playing sports
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.play sports
B.plays sports
C.playing sports
C、playing sports
main()
{inta[3]={3*0},i;
for(i=1;i<3;i++)scanf("%d",a[i]);
for(i=1;i<3;i++)a[0]=a[0]+a[i+1];
printf("%d",a[0]);
}
错误:______
改正:______
I remember her face but I cannot ______ where I met her.
A.recall
B.remind
C.remember
D.remark
A.i⁴ⁿ=1,n∈Z
B.i⁴ⁿ⁺¹=i,n∈Z
C.i⁴ⁿ⁺²=-1,n∈Z
D.iⁿ+iⁿ⁺¹+iⁿ⁺²+Iⁿ⁺³=0,n∈Z
E.iⁿiⁿ⁺¹iⁿ⁺²Iⁿ⁺³=1,n∈Z
F.i⁴ⁿ⁺³=-i,n∈Z