B

https://vjudge.net/contest/218366#problem/B

要不是在数学题专题里，我估计就盲目搜索了。10^18范围1s应该过不去。

再细看能感觉到是gcd的变形，但是具体结论说不上来。

推导参考：https://blog.csdn.net/LuRiCheng/article/details/54729531

#include<iostream>
#include<cstdio>
#include<cstring>
#include<algorithm>
#include<cstdlib>
#include<cmath>
#include<vector>
#include<stack>
#include<queue>
#define lson l, m, rt<<1
#define rson m+1, r, rt<<1|1
#define IO ios::sync_with_stdio(false);cin.tie(0);
#define INF 0x3f3f3f3f
#define MAXN 100010
const int MOD=1e9+7;
typedef long long ll;
using namespace std;
ll n, a, b, x, y;
ll gcd(ll a, ll b)
{
    if(a%b == 0)
        return b;
    return gcd(b, a%b);
}
int main()
{
    IO;
    cin >> n;
    while(n--){
        cin >> a >> b >> x >> y;
        if(gcd(a, b) == gcd(x, y))
            cout << "Yes" << endl;
        else
            cout << "No" << endl;
    }
    return 0;
}