Many Chinese believe____(eat) pig brains will increase their intelligence and some Americans regularly eat____ (cook) eggs to keep their minds sharp.  ____ doctors don't recommend eating____ raw eggs or animal brains. Then, what food is good for your brain? Scientists have found a relationship  ____ diet and a healthy brain. Generally speaking, fish is ____brain food. Besides fish, you should introduce lots of dark green leafy vegetables and colorful fruits into your diet,____ most people lack the special vitamins____ these brain food provide. If you eat brain foods____(regular), they can increase brain power — help you pay attention, keep you motivated, improve your memory and ____(less) stress from studies. Then you can do much better in your test.

在密闭容器中，一定条件下，进行如下反应：NO（g）+CO（g）⇌ $\frac{1}{2}$  N₂（g）+CO₂（g）△H=﹣373.2kJ/mol，达到平衡后，为提高该反应的速率和NO的转化率，采取的正确措施是（   ）

完形填空

    　Mary and Peter were having a picnic near a river when Mary noticed something flying overhead.“ 1 ,” she shouted to her friends. “ That's a spaceship up there and it's going to 2 here.”

　　Frightened(吓唬) by the strange silver colored spaceship,3 of the young people got in their 4 and drove away quickly. But Peter5 Mary and always close to her. They, more 6 than frightened, watched the spaceship land, saw a door open. When nobody 7 , they went to the spaceship and looked into。In the center of the floor 8 was a pile of food. Peter followed Mary into the spaceship and didn't 9 the door close behind him. The temperature fell quickly and the 10young people lost consciousness(知觉).

　　When they woke up, they were 11to see that they were back by the river 12 . The spaceship had gone. Their car was nearby.

　　“What 13 ?” said Mary.

　　“Don't ask me; perhaps we had a 14 .”Peter said slowly. “Did you … did you see a spaceship?”

　　“Yes,” said Mary. “Oh, Peter, we 15 have seen a UFO coming from another world.”

我们每个人都是祖国妈妈的孩子，我们都很热爱自己的____。

在封建男权社会中，武则天作为我国历史上唯一的女皇帝，引发了时人和后人更多的关注与争议。以下评论中最准确的是（   ）