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【简答题】
选词填空 eating,reading,aunt,shopping,homework,Where,doing,sister,family,Who A: Look at the photos of my family. This is my brother. B: 1 is he? Is he in the library? A: No, he's in the living room He is 2 his homework. And that's my 3 . B: Is she doing her 4 ,too? A: No, she is seeing a movie on TV and 5 French fries. And this is a picture of my 6 and my mother at a mall. They like 7 . B: 8 .is the man on the sofa? A: My father. He is 9 a newspaper. B: You have a happy 10 . 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
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【单选题】在三段论“有的科学家是自学成才的,科学家都是有科学成就的人,所以,有些有科学成就的人是自学成才的。”中,表示中项的概念是( )
A.
科学家
B.
自学成才的人
C.
有科学成就的人
【单选题】The climate of Earth is changing. Climatologists are confident that over the past century, the global average surface temperature has increased by about half a degree Celsius. This warming is thought ...
A.
The burning of fuels such as coal or oil.
B.
The clearing of forests.
C.
The cultivation of farmland.
D.
The negative consequences of human activities.
【简答题】特征值与特征向量
【简答题】影响股票发行价格的因素有（ ）。
【单选题】下列关于剂型的错误表述()
A.
剂型系指为适应治疗或预防的需要而制备的不同给药途径
B.
同一种药物可以有不同剂型
C.
剂型系指某一药物的具体品种
D.
同一药物也可制成多种剂型
【简答题】种子净度即种子清洁干净的程度，是指种子批或样品中净种子、杂质和其他植物种子组分的比例及特性。请简述水稻、小麦、玉米、大豆净种子的定义。
【简答题】当单片机晶振频率fosc=12MHz，则系统的时钟周期、机器周期各为多少？
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