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凝血时间测定方法已经淘汰的是（ ）
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To be a good teacher, you need some of the gifts of a good actor, you must be able to hold the attention and interest of your audience; you must be a clever speaker, with a good, strong, pleasing voice which is fully under your control and you must be able to hold what you are teaching in order to make its meaning clear. The fact that a good teaches’ has some of the gifts of a good actor doesn’t mean that he/rill indeed be able to act well on the stage, for there are very important differences between the teacher’s work and the actor’s. The actor has to speak words which he has learnt by heart; he has to repeat exactly the same words each time he plays a certain part, even his movements and the ways in which he Uses his voice are usually fixed beforehand. What he has to do is to make all these carefully learnt words and actions seem natural on the stage. A good teacher works in quite a different way. His audience takes an active part in his play: they ask and answer questions, they obey orders, and if they don’t understand something, they say no. The teacher therefore has to suit his act to the needs of his audience, which is his class. He can not learn his part by heart, but must invent it as he goes along. From the passage, we can infer that a good teacher can
蓝氏贾第鞭毛虫寄生于人体（ ）
[A] umbrella[B] rainy (下雨的)[C] raincoat[D] weather forecast[E] windy[F] sunshine (晴的)[G] snow Having lots of rains.
Issac Newton was (41) great English Scientist (科学家), (42) when he was thinking hard about his work, he often forgot (43) things. One morning Newton got up early. He began (44) at once. He worked on a very difficult problem. He was still thinking about it hard when it was time (45) breakfast. Mary brought a pan of water and an egg to his room. But Newton wanted to stay by (46) and said to Mary, "You can put the egg on the table. I’ll boil (沸腾，煮) it myself." Mary put the egg beside Newton’s watch on the table and said, "You must boil the egg (47) four minutes and then it will be ready." Then she went out of the room. But when she went into the room again an hour (48) , she saw him (49) by the pan, and having the egg in his hand. He had put the watch in the pan and was boiling it. But he didn’t know (50) he was doing.
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