中药番泻叶的主产地是() ["印度","埃及","苏丹","俄罗斯","英国"]
贵州同时具有“生态河”、“美酒河”、“历史河”美誉的河流是() ["红水河","乌江","北盘江","赤水河"]
手背各指缝中的赤白肉际,左右共八穴是() ["四神聪穴","十宣","八风穴","八邪穴","四缝穴"]
哈尔滨工程大学具有黑龙省最大的图书馆,它的藏书量非常丰富。大约有() ["30万册","50万册","270万册","1000万册"]
以下不属于农业环境问题的是?() ["餐厨垃圾过多","土地沙化","土地贫瘠化","水体富营养化"]
新建或改建、扩建民用建筑时,结建人防工程的比例是如何规定的?