That's _____ car. It's _____ English car. [ ]
A.a, an
B.a, a
C.an, a
答案：A
声音在日常生活中有广泛的应用，请你按下列要求各举一实例．利用声音来传递信息的有______；利用声音来传递能量的有______．
如何进行月度结转？
