旅游开发
参考答案：一般是指为发挥、提升旅游资源对游客的吸引力，使得潜在的旅游资源优势转化成为现实的经济效益，并使旅游活动得以实现的技术经济行为。
The Browns are from England. They live in New York. Mr. Brown is a doctor. Mrs. Brown doesn’t work. She has a lot of housework to do every day. They have two sons. Bob is ten years old and Tom is eight years old. They are students. Bob doesn’t want to be a doctor but Tom does. Bob wants to be a pilot（飞行员）. Their daughter, Molly, doesn’t go to school. She is only four years old. Molly wants to be a teacher.
小题1:Do the Browns live in America now?
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小题2:What does Mr. Brown do?
小题3:How many people are there in Brown’s family?
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流脑的传播途径是 （）
A.生活密切接触
B.蚊虫叮咬
C.呼吸道
D.输血或血液制品
E.消化道
