题目

—____________________. —I’d like some noodles, please.A. How do you do? B. What do you do?C. How are you? D. What can I do for you? 答案：【答案】D【解析】句意：——我能为你做点什么吗？(你要吃点什么？)------我想吃些面条。A. How do you do? 你好！B. What do you do? 你是做什么的？C. How are you? 你好吗？ D. What can I do for you? 需要帮忙吗？结合语境理解，答案为D。下列物理量的“–”号表示方向的是A．室外气温t = –5.0℃           B．物体的速度v = –2.0m/s C．物体的重力势能Ep = –12.0J         D．A、B两点间的电势差= –5.0V