A:通过湿地建设和草种改良,合理发展畜牧业、畜产品加工业
B:利用湿地的大面积水域发展水上游乐场
C:利用其独特的高原天然湿地风貌和动植物种类,发展旅游业
D:利用湿地优越的自然条件和拉萨市的广阔市场,建立蔬菜、瓜果生产基地
按要求变化下列各句(1)Lisa was on duty yesterday afternoon. (对划线部分提问)____ was on duty yesterday afternoon?(2) The students had a piano lesson last Monday. (改为否定句)The students ____ a piano lesson last Monday.(3) Claudia was at the culture club this morning. (改为一般疑问句)____ at the culture club this morning?(4) It’s Friday today. (对划线部分提问)____ is it today?(5)They were at the office yesterday. (对划线部分提问)____ they yesterday?
读我国“四大工程示意图”,下列有关四大工程叙述,不正确的是