目前认为人类主要的致龋菌是
【单选题】
-She didn't come to school yesterday, did she? -______ . Because she was not feeling well .
A.
No, she didn't
B.
No, she did
C.
Yes, she didn't
D.
Yes, she did
参考答案
参考解析
【单选题】
圆明园始建于康熙四十六年,由圆明园、长春园、绮春园三园组成,为西洋兼中式皇家风格园林。火烧圆明园发生于 ( ) 时期。
第一次鸦片战争
第二次鸦片战争
甲午战争
八国联军侵华
