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【单选题】
Bali is a tiny island that today is part of Indonesia. It is a pretty island that has many mountains and a pleasant climate. For a long time, Bali was cut off from much of the world. The people of Bali were happy and gay and had a peaceful life. They were not allowed to fight. At one time there had been terrible wars on Bali. Then the people decided it was wrong to fight or have wars. They made rules to keep apart those people who wanted to fight. Bali was divided into seven small kingdoms. The land around each kingdom was kept empty, and no one lived there. Since the kingdoms did not share the same borders, the people could not fight about them. On Bali, even children were not allowed to fight. If two children started a fight over a toy, someone separated them. When two boys argued, they would agree not to speak to each other. Sometimes they did not talk together for months. This gave the boys a chance to forget their anger. Families who were angry with each other also promised not to speak. Their promise was written down, and the whole village knew about it. If they broke their promise, they had to offer gifts to their gods. Bali is an island belonging to ______.
A.
India
B.
Africa
C.
Asia
D.
America
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参考答案:
举一反三
【简答题】单号左边,第一大题,16小题的答案,请按题号顺序,字母必须大写,小写即为错误。
【单选题】下列说法错误的是 。
A.
水暖管连接件可用可锻铸铁制造
B.
锡青铜铸件收缩率小,适用于制造形状复杂、壁厚变化不大的器件
C.
铝镁系合金在大气和海水中的耐水性好,室温下有良好的综合力学性能和可切削性能
D.
ZG200-400 具有良好的韧性和塑性,但强度和硬度较低,用于制造机座、电器吸盘、变速箱体等零件
【简答题】1+2+3+...+129+130+129+...+3+2+1 =( )×( )
【简答题】社区干预试验
【简答题】单号左边,第一大题,16小题的答案,请按题号顺序,字母必须大写,小写即为错误。
【单选题】下列哪种不是试验性研究()
A.
临床试验
B.
现场试验
C.
病例对照
D.
社区干预试验和整群随机试验
【单选题】社区干预试验研究对象的基本单位是( )
A.
社区中个体
B.
社区中患者
C.
社区人群
D.
社区老年人
【简答题】单号左边,第一大题,16小题的答案,请按题号顺序,字母必须大写,小写即为错误。
【简答题】ZG200-400具有良好的 和 ,但 和 较低,用于制造机座、 、 等零件。
【单选题】现场试验和社区干预试验最大的区别在于
A.
研究对象是否为病人
B.
是否评价预防措施效果
C.
干预措施是个人还是社区
D.
是否需要随机分组
E.
是否采用盲法
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