（）的内容是以明末复社文人侯方域与秦淮名妓李香君的爱情故事来反映南明弘光王朝覆灭的历史。作者自称其写作目的是“借离合之情，写兴亡之感”。
参考答案：桃花扇
—Jack ________ride a motorcycle to work.
— Yes, but now he ________ there as motorcycles are not allowed on our city streets.
A．used to; is used to walk
B．was used to; is used to walking
C．was used to; is used to walk
D．used to; is used to walking
高斯投影属于（）
A.等面积投影
B.等距离投影
C.等角投影
D.等长度投影
