问题
填空题 案例分析题
DNA片段的结构图,请据图回答:
填出图中各部分的名称:[1]()、[2]()、[3]()、[5]()
答案
参考答案:碱基对;多核苷酸链;脱氧核糖;腺嘌呤脱氧核苷酸
DNA片段的结构图,请据图回答:
填出图中各部分的名称:[1]()、[2]()、[3]()、[5]()
参考答案:碱基对;多核苷酸链;脱氧核糖;腺嘌呤脱氧核苷酸
完形填空。 | ||||
Mr. Black works in a hospital. As a good __1__, the people in the town like him He's often __2__ to the patients and looks them over carefully. __3__ he's always busy and has little time to rest. One morning Mr. Black got to the hospital and saw there was a fat woman in the __4__. He called her in his office and asked, " __5__, madam?" "It was my birthday yesterday, sir," said the woman, "My husband gave me a __6__. But I couldn't push my way in (设法进入) it." "__7__, madam," said Mr. Black. "You have to lose some weight. You'll be able to __8__ your coat if you do all that I say. " "You're __9__, sir." said the fat woman "He bought me not a coat, but a dear __10__!" | ||||
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