答案：C
根据首字母提示补全单词，使对话恢复完整。
A: Hello! Wei Hua! W___________ are you going?
B: I'm going to the b___________.
A: W___________ are you going to buy?
B: I'm going to buy a d___________.
A: A___________ you going to buy a Chinese dictionary or English one?
B: An English o___________.
A: I want to buy one, t___________. Let's go t___________.
如果A→B中，A表示B的因数，请你判断下列哪些表示方法是正确的．（对的打“√’’，错的打“×”）
（1）8→4______
（2）6→12______
（3）5→25→125．______
（4）10→20→5______
（5）1→1→1______．
