阅读理解

    Mr. Brown lived in a house less than two miles from his office, so he was able to drive home every day for lunch. Every time he drove home at noon, he found many cars were parked outside his house and there was no room for his own car. He had to drive somewhere else to park his car. Then he had to walk back home. This made him very angry.
   He had put up a board, which said, “ No parking” in the garden facing the road, but nobody noticed it. People seemed to obey(遵守) only a police notice with letters on a blue board:
POLICE NOTICE
NO PARKING
   Mrs. Brown suggested that he could steal a police notice. He was afraid to do so. She then suggested that he could make one just like a police notice. He said he was not the police and couldn’t use the word “police”. Several days later, Mr. Brown made a blue board with white letters:
POLITE NOTICE
NO PARKING
   “ Oh!” Mrs. Brown said, “You told me you weren’t going to use the word  “police”, but why do you use it now?” “Really?” he asked, “Look again.” She started to laugh. “You are really clever.”

①老虎吃野猪         ____    A、互助

②企鹅相互喂食       ____    B、竞争

③田里的水稻和杂草   ____    C、捕食关系

关于我国地理环境及国情叙述正确的是(    )
①地势东高西低，呈阶梯状分布  ②气候复杂多样，季风气候显著 ③领土位于亚洲东部，太平洋西岸 ④自然资源总量丰富，人均占有量位居世界前列 ⑤世界上人口最多的国家