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【简答题】
为研究人群高血压患病率及其分布特点，在w市采用分层随机抽样方法抽取五个社区，对15岁以上的居民进行体检并填写健康调查问卷。该种研究属于（ ）
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举一反三
【简答题】An e________is to express feelings or attitude towards an existing state.
【单选题】A technician is installing an Express Card 54 device into a laptop. How will the device MOST likely be installed?（）
A.
Into available expansion slot
B.
Via physical external dongle
C.
Via internal expansion slot
D.
Into any available USB slot
【判断题】The effect of an implied contract is not the same as the effect of an express contract.
A.
正确
B.
错误
【单选题】When Johnny's parents saw the report, they were happy because _______. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
Johnny was good at math prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
B.
Johnny loved computers prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
C.
Johnny could join one computer to another prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
D.
they thought Johnny was not poor in English any longer prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
【简答题】Johnny lived with his parents in a small town in the mountain. One day there was earthquake near the town. Many houses were damaged(损坏的). Everyone thought that there would be earthquake soon. They wer...
【简答题】AutoCAD2008坐标系统的格式包括 、 。
【单选题】Johnny's parents always let him have his own _____________.
A.
will
B.
way
C.
wish
D.
order
【判断题】An express contract is one in which the agreement is shown by the acts and conduct of the parties.
A.
正确
B.
错误
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