2.64×0.5的积与□的积相等。□内应填请选择CBA5y7J:m,V7\1c:R+{*e9v2e0t0c;J;K8j
A.0.264×52e0t0c;J;K8j
B.26.4×0.52e0t0c;J;K8j
C.264×52e0t0c;J;K8j