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【简答题】
阅读理解。 It was Sunday, Jim did not have to go to school. He helped his father in the Garden. After two hours in the garden, He was ti red. He went in the room and took out an ice cream from the fridge. He asked his father if he felt thirsty. And if he said yes he would bring him a bottle if cola. But his father said no. And he told Jim when he was young he often helped his parents with the work on the farm. Sometimes the weather was hot and sometimes it was cold and windy. But he never gave up just because he was hungry or thirsty. He thought a real man could stand everything that others can’t bear. 1. What did Jim do on Sunday? A. Helped his parents with the farm work. B. Helped his father in the garden in his house. C. Watched TV all day. D. Went to school. 2. Can you guess how the weather was then? A. Cold and windy. B. Very hot. C. Rainy. D. Snowy. 3. Did his father work on the farm when he was young? A. Yes, he did. B. No, he didn’t. C. I don’t know. D. He weren’t. 4. Did his father drink cola? A. Yes, he did. B. No, he didn’t. C. He drank a little. D. He ate an ice cream. 5. Why did Jim help his father work in the garden? A. Because it was Sunday. B. Because his family was poor. C. He likes doing housework. D. His father made him do it.
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参考答案:
举一反三
【简答题】二元信源发出符号“0”和“1”的概率相同,信道误码率为1/4。若发送的符号为“0”,接收符号为“1”,则接收端收到该符号后获得的信息量为 bit。(计算结果保留3位有效数字)
【简答题】氧气存在于环境空气中,可以通过气调包装等方式()、()、()存储空间内的氧气含量,保证商品质量
【单选题】信息在人脑中的储存和呈现方式,在心理学上被称为知识的 。
A.
直观
B.
系统
C.
表征
D.
网络
【单选题】下列选项中属于程序法的是( )
A.
《中华人民共和国刑法》
B.
《中华人民共和国著作权法》
C.
《中华人民共和国婚姻法》
D.
《中华人民共和国民事诉讼法》
【简答题】2PSK系统的基带调制信号码型为( )。
【判断题】公路工程高程控制测量的精度和等级选用和公路等级无关。
A.
正确
B.
错误
【简答题】二元信源发出符号“0”和“1”的概率相同,信道误码率为1/4。若发送的符号为“0”,接收符号为“0”,则接收端收到该符号后获得的信息量为 bit。(计算结果保留3位有效数字)
【单选题】图10-30所示电路中,AB间的戴维南等效电路中的电压源的内复阻抗Z为()Ω。
A.
-j2
B.
-j7.5
C.
j7.5
D.
j2
【单选题】如测得阴道液PH值是多少,可以判定胎膜已破
A.
≥7.0
B.
4.5~5.5
C.
5.5~6.5
D.
6.5~7.0
【单选题】下列选项中属于程序法的是( )
A.
《中华人民共和国刑法》
B.
《中华人民共和国著作权法》
C.
《中华人民共和国广告法》
D.
《中华人民共和国民事诉讼法》
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