施耐庵写《水浒传》取材于[ ]
A．北宋末年的宋江起义
B．明朝末年李自成起义
C．秦末陈胜、吴广超义
D．秦末刘邦、项羽起义
答案：A
根据句意和所给中文，用单词的正确形式填空。
1. My daughter is very _ (诚实的).She never tells lies.
2. Don’t tell others about it. It’s a __ (秘密) between us.
3. You can’t take these (杂志) out of the reading room.
4. Don’t (相信) him. He always tells lies.
5. There are some ______(广告)in the magazine.
一质量为m的小球，用长为L不可伸长的轻绳悬挂于O点，小球在水平力F的作用下从平衡位置P点缓慢移动到Q点，如图所示，则此过程中力F做的功为
A．
B．
C．
D．
