(2) The natural gas of "West-to-East Gas Transmission" mainly comes from Tarim Basin at home and Central Asia abroad, and enters China from Horgos Port.
(3) Three routes of power transmission from west to east are determined. The southern line ends at the Pearl River Delta industrial base in China, and the special administrative regions adjacent to the base are Hongkong and Macau. The industry in this special administrative region has been transformed into a technology-intensive industry.
(4) The East Route Project of South-to-North Water Diversion will take water from Yangzhou in the lower reaches of the Yangtze River, with the Beijing-Hangzhou Canal as the main water conveyance channel, and use the existing lakes and rivers to alleviate the water conveyance problems along the upper reaches of Huaihe River, the Yellow River Basin and Jiaodong area 1 150 km water conveyance line.
(5) Inter-basin water transfer cannot completely solve the problem of water shortage in northern China, and effective measures include saving water and preventing water pollution.
So the answer is:
( 1)B；
(2) Tarim; Horgos;
(3) Pearl River Delta; Hong Kong and Macao; Technology;
(4) Beijing-Hangzhou Canal; Yellow;
(5) Save water and prevent water pollution.