题目内容
将下列词语依次填人各句横线处，最恰当的一组是()。
“行无愧怍心常坦，身处艰难气若虹”。陈独秀的身上不仅具备革命家的______，还体现了一个传统的正直的知识分子的______。
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非自动进口许可制是指在任何情况下对申请进口商品一律予以批准签发的进口许可证制度。()
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How close parents are to their children______a strong influence on the development of the
The vitamins necessary for a healthy body are normally supplied by a good mixed diet (饮食), including a variety of fruits and green vegetables. (79)It is only when people try to live on a very restricted diet that it is necessary to make special provision to supply the missing vitamins.
An example of the dangers of a restricted diet may be seen in the disease known as “beri-beri”. (80) It used to distress large numbers of Eastern peoples who lived mainly on rice. In the early years of this century, a scientist named Eijkman was trying to discover the cause of “beri-beri”. At first he thought it was caused by a germ. He was working in a Japanese hospital, where the patients were fed on polished rice which had the outer husk (外壳) removed from the grain. It was thought this would be easier for weak and sick people to digest.
Eijkman thought his germ theory was confirmed when he noticed the chickens in the hospital yard, which were fed on leftovers (剩饭) from the patients’ plates, were also showing signs of the disease. He then tried to isolate the germ, but his experiments were interrupted by a hospital official, who declared that the polished rice, even though left over by the patients, was too good for chickens. It should be rebooked for the patients, and the chickens should be fed on cheap rice with the outer layer still on the grain.
Eijkman noticed that the chickens began to recover on the new diet. He began to consider the possibility that eating unpolished rice somehow prevented or cured “beri-beri” even that a lack of some element in the husk might be the cause of the disease. Indeed this was the case. The element needed to prevent “beri-beri” was shortly afterwards isolated from rice husks and is now known as vitamin B. Nowadays, this terrible disease is much less common thanks to our knowledge of vitamins.
A good mixed diet______
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