新农村社区改造中，有一部分楼盘要对外销售，某楼盘共23层，销售价格如下：第八层楼房售价为4000元/米²，从第八层起每上升一层，每平方米的售价提高50元；反之，楼层每下降一层，每平方米的售价降低30元，已知该楼盘每套楼房面积均为120米²．

若购买者一次性付清所有房款，开发商有两种优惠方案：

方案一：降价8%，另外每套楼房赠送a元装修基金；

方案二：降价10%，没有其他赠送．

①人才强国是我国重大的发展战略

②维护市场秩序需要国家进行科学的宏观调控

③市场经济具有盲目性．滞后性的缺陷

④劳动力作为最活跃的因素，是生产力发展的重要标志

  London is such a wonderful city. It is very large. The Thames River runs 1 the city from west to east. So the city has 2 parts:    the South and the North. In the North, there are important buildings, shops, big parks and interesting places.
The weather in London is good. In winter it is not very cold and in summer it is not very hot 3 the city is near the sea. People say 4 London is a foggy city and it often rains. It is true.
   Last year, when I 5 in London I met one of the 6 fogs in years. You could hardly see your hand in front of your face. Cars and buses moved along with their lights on. When evening fell, the weather 7 even worse. The fog was as thick as milk.8 the buses and cars stopped. I happened 9 an important meeting on the other side of the town, but it was impossible to find a car. I had to get there 10.

下列气体中原始大气不具有的气体是（ ）

“紫禁城内各宫殿，尽为寇兵分国占据。三海、万寿山、颐和园等处……各宫中历代珍异皆为日人捆载以去。”这是指哪一次侵华战争？