党的十八大报告指出，要大力弘扬民族精神和时代精神。民族精神和时代精神内涵十分丰富，它们的核心分别是（    ）

某农场去年产大豆25吨，今年由于多种原因减产一成五，今年产大豆____吨。

下列关于制取蒸馏水的实验装置与操作的说法中，不正确的是（　　）

    A boy and his father were walking in the mountains. Suddenly the boy fell，hurt himself，and cried，"AAAhhhhhhhh！！！"To his surprise，he heard the voice repeating（重复），somewhere in the mountain,“AAAhhhhhhhh!!!＂Then the boy shouted，“Who are you?” He received the answer，"Who are you?" He got angry at the answer，so he shouted，"Foolish!" He received the answer，"Foolish！”
He looked at his father and asked，“What’s going on?" The father smiled and said，"My son，listen.”And then he shouted to the mountain，"I love you！”The voice answered，“I love you!”Again the man cried，"You are the best！"The voice answered，“You are the best！”
    The boy was surprised, but did not understand. Then the father explained（解释），"People call this‘Echo’，but really this is Life. It gives you back everything you say or do. Our life is just a reflection（反映）of what we have done. If you want more love in the world，have more love in your heart. If you want to be successful，work hard. This can be used in everything in life. Life will give you back everything you have given to it.”