下列语句中符合C语言语法的赋值语句是

A.a=7+b+c=a+7;  

B.a=7+b++ ;

C.a=(7+b,b++,a+7);

D.a=7+b,c=a+7;

A.a=7+b+c=a+7;

B.a=7+b++=a+7;

C.a=7+b, b++, a+7

D.a=7+b, c=a+7;

A.x + y = 5

B.3y = Math.Sin(x)

C.Label1.Text = Now()

D.Length = x + y

E.TextBox1.Text = x + y

A.x+y=10

B.x=2y

C.x=y=30

D.3y=x+1

A.a=b=5;

B.y=(a=3,6*5);

C.++j;

D.a=1,b=2

A.a + b = c

B.36 = sin(a)

C.c = a / b

D.sin(a) = b * c

A.j++;

B.j=j=5;

C.k=2*4,k*4;

D.y=float(j);