《卖火柴的小女孩》这篇童话故事，作者是（）。
A.安徒生
B.巴金
C.培根
参考答案：A
比较复杂的坐标转换是（）
A.平移
B.投影变换
C.缩放
D.旋转
She didn’t come to the party last Sunday.＿＿＿,she must have made the party more exciting.
A．If she came
B．Would she come
C．Had she come
D．Did she come
