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【单选题】
某市开展分析高血压与冠心病的关系研究,对市内所有医院的冠心病患者的诊断进行了复查,最后确定冠心病患者共500例,随机选取其中的200名调查既往高血压史,并从附近地区选400名对照同时进行调查,使对照在年龄上与病例相似。根据上述资料()
A.
可以计算该市冠心病的发病率
B.
可以计算对照人群冠心病的发病率
C.
可以计算该市和对照人群冠心病的发病率
D.
不能计算该市冠心病的发病率
E.
不能计算该市和对照人群冠心病的发病率
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举一反三
【单选题】How Sled Dogs Work They're physical wonders-able to endure extreme conditions for extensive periods of time while running fast and pulling more than their own weight. Sled (雪橇) dogs have been around f...
A.
Because they are raised by wolves.
B.
Because they can stand most severe weather.
C.
Because they are fastest runner among Arctic animals.
D.
Because they can bear goods like horses do.
【判断题】阶级性和科学性是不相容的,凡是代表某个阶级利益和愿望的社会理论,就不可能是科学。
A.
正确
B.
错误
【单选题】In polar regions you should NOT expect to see ______.
A.
mirage effects
B.
sea smoke
C.
extensive snowfall
D.
false horizons
【判断题】阶级性与科学性是不相容的,凡是代表某个阶级利益和愿望的社会理论,就不可能是科学的。因为马克思主义具有阶级性,所以是不科学的。
A.
正确
B.
错误
【多选题】确定直线定向的标准方向有
A.
坐标纵轴方向
B.
真子午线方向
C.
赤道方向
D.
磁子午线方向
【单选题】Part B (10 points) You are going to read a text about the principles for teaching extensive reading, followed by a list of examples. Choose the best example from the list for each numbered subheading....
A.
The learners' experience of reading the text is at the center of the extensive reading experience, just as it is in reading in everyday life. For this reason, extensive reading is not usually followed by comprehension questions. It is an experience complete in itself. At the same time, teachers may ask students to complete follow-up activities based on their reading. Such activities, while respecting the integrity of students' reading experiences, extend them in interesting and useful ways.
B.
Books, magazines, newspapers, fiction, non-fiction, texts that inform, texts that entertain, general, specialized, light, serious.
C.
In helping beginning readers select texts that are well within their reading comfo
【单选题】视近物时眼的调节活动不包括
A.
瞳孔缩小
B.
晶状体凸度增大
C.
睫状肌收缩
D.
双眼球汇聚
E.
眼球前后径增大
【单选题】概算定额是在( )的基础之上,以形象部位为对象将若干个联系的分项工程项综合、 扩大、合并成为一个概算定额项日。
A.
预算定额
B.
概算指标
C.
劳动定额
D.
投资估算指标
【单选题】若船体破损进水后需采取以保持船体平衡的措施来实现,则在所有措施中()应慎重使用。
A.
移载法
B.
对称灌注法
C.
排出法
D.
压载法
【单选题】概算定额是在( )的基础之上,以形象部位为对象将若干个联系的分项工程项综合、扩大、合并成为一个概算定额项目。
A.
预算定额
B.
概算指标
C.
劳动定额
D.
投资估算指标
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