单选题:若`x`是`double`型变量,`n`是`int`型变量,执行以下语句( ),并输入`3 1.25`后,`x`的值是`1.
若`x`是`double`型变量,`n`是`int`型变量,执行以下语句( ),并输入`3 1.25`后,`x`的值是`1.25`,`n`的值是`3`。。
@[A](1)
A.
```
scanf("%d%lf", &n, &x);
```
B.
```
scanf("%lf%d", &x, &n);
```
C.
```
scanf("%lf%d", &n, &x);
```
D.
```
scanf("%d, %lf", &n, &x);
```
A.
```
scanf("%d%lf", &n, &x);
```
B.
```
scanf("%lf%d", &x, &n);
```
C.
```
scanf("%lf%d", &n, &x);
```
D.
```
scanf("%d, %lf", &n, &x);
```
答案:A
@[A](1)
A.
```
scanf("%d%lf", &n, &x);
```
B.
```
scanf("%lf%d", &x, &n);
```
C.
```
scanf("%lf%d", &n, &x);
```
D.
```
scanf("%d, %lf", &n, &x);
```
A.
```
scanf("%d%lf", &n, &x);
```
B.
```
scanf("%lf%d", &x, &n);
```
C.
```
scanf("%lf%d", &n, &x);
```
D.
```
scanf("%d, %lf", &n, &x);
```
答案:A