【探索中前进的现代工业】
回答下列问题:
读下图,完成1~2题(图中各数字代表该点的月份)
ⅠA
ⅡA
ⅢA
ⅣA
Q
X
Y
-- Could you tell me __________ yesterday?
-- Because my bike was broken on my way here.
选出不同类的一项( )