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【单选题】
状态图通常是对类描述的补充,他说明该类的对象所有可能的状态以及那些事件将导致状态的改变,下面说法错误的是()
A.
状态图可以对多个对象建立模型,表达各对象所处的可能状态及状态之间的转移
B.
一个事件可以是另一个对象向它发送的一条消息,或者是满足了某些设定条件的结果
C.
状态图的改变称为迁移(transition)
D.
一个状态迁移还可以有与之相关的动作,改动作指出状态迁移做什么
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【判断题】班级是学生发展的一面镜子,它通过群体作用在镜子中所形成的影像,即班级组织的镜像,在教育过程中发挥着重要的作用。()
A.
正确
B.
错误
【简答题】Most parents, I suppose, have had the experience of reading a bedtime story to their children. And they must have how difficult it is to write a children's book.  Either the author has aimed too . , s...
【多选题】属于染色体结构变异的有
A.
一条正常的染色体丢失了某一个区段
B.
一条正常的染色体上某一区段发生了360°的旋转
C.
两条同源染色体间相互交换了某一个区段
D.
一条正常的染色体上额外重复了某一个区段
【简答题】Chen is invited to George ' s party. And she has brought along a freshly 1 cake with her. George is her friend from 2 . He is very happy when Chen tells him that she wouldn ' t miss the party for the ...
【单选题】Adam Smith was the first person to see the importance of the division of the labor. He gave us an example of the process by which pins were made in England. 'One man draws out the wire, another streng...
A.
take advantage of the physical labor
B.
introduce the division of labor into England
C.
understand the effects of the division of labor
D.
explain the bad causes of the division of labor
【判断题】David is happy that he wore his best suit.
A.
正确
B.
错误
【单选题】检测动脉导管未闭患者主动脉向肺动脉的分流血流,下述哪一种方法是错误的:()。
A.
彩色多普勒血流显像
B.
彩色多普勒血流显像加可通过左心的超声造影
C.
二维超声显像
D.
频谱多普勒的连续波多普勒
E.
以上都不是
【单选题】David is so happy with the customer service of the company that he is calling.
A.
Right
B.
Wrong
C.
Not mentioned
【简答题】阅读理解。 People in the United States honour their parents with two special days: Mother's Day, on the second Sunday in May, and Father's Day, on the third Sunday in June. These days are set aside to show...
【单选题】检测动脉导管未闭患者主动脉向肺动脉的分流血流,下述哪一种方法是错误的
A.
彩色多普勒血流显像
B.
彩色多普勒血流显像+可通过左心的超声造影
C.
二维超声显像
D.
频谱多普勒的连续波多普勒
E.
以上都不是
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