题目

请听材料，回答问题。 （1） Who is in charge of Hong Kong Disneyland? A . The Hong Kong International Theme Parks. B . The Hong Kong Tourism Board. C . The Hong Kong Disneyland Resort. （2） What did Disney try to avoid when designing and building the resort? A . The waste of energy. B . The rules of fengshui. C . Cultural conflict. （3） How many languages do the service members speak? A . 2. B . 3. C . 4. （4） What is Disneyland's plan in the near future? A . Expanding to 123 acres. B . Building another three themed areas. C . 一光滑斜面放在水平地面上固定不动，某物体放在斜面上．已知斜面对物体的支持力为400N，重力沿斜面方向的分力大小为300N．求：（1）该物体的质量多大？（2）物体沿斜面下滑的加速度为多大？（3）斜面与水平地面的夹角多大？