如图是拍摄机动车辆闯红灯的工作原理示意图。光控开关接收到红灯发出的光会自动闭合，压力开关受到机动车的压力会闭合，摄像系统在电路接通时可自动拍摄违章车辆。下列有关说法正确的是（     ）

①国际关系的实质是竞争、合作与冲突

②我国坚定地维护国家战略安全利益

③独立自主是我国外交政策的基本目标

④世界和平面临诸多难题和挑战

根据短文理解, 从A、B、C、D四个选项中选择组最佳答案填空。

    "Tell me what you are 1 on Sunday morning, Mike," Mr Zhang says. "I'm going to 2 a new film. It's an English film 3 the life of the students in America. Bill tells me it's 4 interesting, "says Mike.

    Mr Zhang wants 5 more, so he asks, "After 6 the film, what are you going to do?" "I'm going to learn Chinese," Mike says. "Do you like it?" asks Mr Zhang. "Chinese is not easy 7 me, but I like it very much. I'm going to work hard 8 it. After lunch I'm going to do my homework. I think I can do it better than before." "Then, 9 about Sunday evening?" Mr Zhang asks." After supper I'm going to help Han Mei 10 her English. She needs my help," Mike says.

    "You are going to have a busy day, aren't you?" says Mr Zhang.