能和1/4：1/3组成比例的是请选择CBA*d5{/R3\3B/Y.r(K6R,V8v8B,r'i5S,i2?
A．4：3(K6R,V8v8B,r'i5S,i2?
B．3：4(K6R,V8v8B,r'i5S,i2?
C．1/3： 1/4(K6R,V8v8B,r'i5S,i2?