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【简答题】
阅读理解。 Dick lived in England. One day in January he said to his wife, 'I'm going to fly to New York next week because I've got some work there.' 'Where are you going to stay there?' his wife asked. 'I don't know yet.' Dick answered. 'Please send me your address from there in a telegram (电报),' his wife said. 'All right,' Dick answered. He flew to New York on January 3 st and found a nice hotel in the center of the city. He put his things in his room and then he sent his wife a telegram. He put the address of his hotel in it. In the evening he didn't have any work, so he went to a cinema. He came out at nine o'clock and said, 'Now I'm going back to my hotel and have a nice dinner.' He found a taxi (出租车) and the driver said, 'Where do you want to go?' But Dick didn't remember the name and address of his hotel. 'Which hotel are my things in?' he said, 'And what am I going to do tonight?' But the driver of the taxi did not know. So Dick got out and went into a post office. There he sent his wife another telegram, and in it he wrote, 'Please send me my address at this post office.' Choose the right answer 1. Dick flew to New York because ___. A. he went there for a holiday B. he had work there C. he went there for sightseeing (观光) D. his home was there 2. Why did his wife want a telegram from him? A. Because she didn't know his address yet B. Because she wanted to go to New York, too C. Because she might send him another telegram D. Because she couldn't leave her husband by himself in New York 3. Where did Dick stay in New York? A. In the center of the city. B. In a hotel. C. In a restaurant. D. At his friend's house. 4. Who would send him the name and address of his hotel? A. The manager of his hotel. B. The police office. C. The taxi driver. D. His wife
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【单选题】【Test-9-1-7】在常用的描述二叉排序树的存储结构中,关键字值最大的结点( )。
A.
左指针一定为空
B.
右指针一定为空
C.
左右指针均为空
D.
左右指针均不为空
【简答题】某化学兴趣小组,在变质的苛性钠中,加入一定量的稀盐酸,实验结束后,对所得“无色溶液”进一步探究. 提出问题:反应后的溶液中含有哪些溶质呢? 猜想与假设: 甲同学猜想:溶液中只含有NaCl一种溶质; 乙同学猜想:溶液中含有NaOH、NaCl二种溶质; 表达与交流:甲同学猜想的理由是(1) ______. 反思与评价:请对乙同学的猜想做出评价: (2) ______ ______. 甲同学为了验证自己...
【单选题】治疗量强心苷增强心肌收缩力的作用原理是
A.
激动心脏的β1受体
B.
促进儿茶酚按的释放
C.
抑制磷酸二酯酶
D.
抑制Na+-K+-ATP酶的活性
E.
阻断心脏的M2受体
【单选题】在常用的描述二叉排序树的存储结构中,关键字值最大的结点(48)。
A.
左指针一定为空
B.
右指针一定为空
C.
左右指针均为空
D.
左右指针均不为空
【单选题】在常用的描述二叉排序树的存储结构中,关键字值最大的节点(12)。
A.
左指针一定为空
B.
右指针一定为空
C.
左右指针均为空
D.
左右指针均不为空
【单选题】在常用的描述二叉排序树的存储结构中,关键字值最大的节点(16)。
A.
左指针一定为空
B.
右指针一定为空
C.
左右指针均为空
D.
左右指针均不为空
【单选题】在常用的描述二叉排序树的存储结构中,关键字值最大的结点是( )。
A.
左指针一定为空
B.
右指针一定为空
C.
左右指针均为空
D.
左右指针均不为空
【单选题】【 9-1-10 】 在常用的描述二叉排序树的存储结构中,关键字值最大的结点( )。 A .左指针一定为空 B .右指针一定为空 C .左右指针均为空 D .左右指针均不为空
A.
错误
B.
选 B 。在二叉排序树的存储结构中,每个结点由三部分构成,其中左(或右)指针指向比结点的关键字值小(或大)的结点。关键字值最大的结点位于二叉排序树的最右下位置上,它的右指针一定为空(注意,有可能不是叶结点)。
C.
不正确
D.
概念错误
【简答题】试总结乙酸的物理性质
【判断题】任何药物都可以申请商品名
A.
正确
B.
错误
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