在我国旅游业的初创阶段，旅游业的发展面临着不少制约因素，最突出的是国内铁路运输，它成为旅游业发展的“瓶颈”。

A . 高投入 B . 高速度 C . 低质量 D . 低效益 E . 低指标

A . 旅游业 B . 旅游者 C . 旅游客源地 D . 旅游目的地

A . 正确 B . 错误

A . 正确 B . 错误

A . 正确 B . 错误

A . 正确 B . 错误

A . ①②③④ B . ①②③ C . ②③④ D . ①③④

A . 正确 B . 错误

A . 1979 B . 1985 C . 1978 D . 1978

A . 正确 B . 错误

A . A.整体规划 B . B.知名品牌 C . C.战略谋划 D . D.战略远见

A . 正确 B . 错误

A . 萌芽阶段 B . 起步阶段 C . 加快发展阶段 D . 市场化发展阶段

A.对 B.错

A．①②③④ B．①②③ C．②③④ D．①③④

选项格式A.With the rapid development of industrialization and urbanization of China's economy, haze appears in a large number of cities and their surrounding areas, which is considered to be one of the major realistic problems facing the sustainable development of China's social economy. B.Along with the stage of China's economy entering the rapid development of industrialization and urbanization, the smog phenomenon has appeared in many cities in China and its surrounding areas, and is considered to be one of the major practical problems facing the sustainable development of China's social economy. C.As China has seen rapid industrialization and urbanization, smog prevails in a large number of Chinese cities and their surrounding areas, and is considered one of the major problems threatening China’s social and economic sustainability. D.With China's economy entering the stage of rapid industrialization and urbanization, smog phenomenon appears in a large number of cities and their surrounding areas in ChinA.With the rapid development of industrialization and urbanization of China's economy, haze appears in a large number of cities and their surrounding areas, which is considered to be one of the major realistic problems facing the sustainable development of China's social economy. B.Along with the stage of China's economy entering the rapid development of industrialization and urbanization, the smog phenomenon has appeared in many cities in China and its surrounding areas, and is considered to be one of the major practical problems facing the sustainable development of China's social economy. C.As China has seen rapid industrialization and urbanization, smog prevails in a large number of Chinese cities and their surrounding areas, and is considered one of the major problems threatening China’s social and economic sustainability. D.With China's economy entering the stage of rapid industrialization and urbanization, smog phenomenon appears in a large number of cities and their surrounding areas in Chin选项格式A. It is considered to be one of the major practical problems facing China's sustainable social and economic development.