题目内容

发病率指标来自所有病人资料。()

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Which of the following sentences expresses INTENTION？

A. If Tom asks his father to buy him a bicycle, his father will probably do so.
B. They will have arrived by now.
C. You shall stay with us as long as you like.
D. You shall marry him!

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发病率指标来自所有病人资料。()

Which of the following sentences expresses INTENTION？

实验性研究中实施双盲观察的主要目的是减少抽样误差的影响。()

实时流式传输，保证媒体信号带宽与网络连接配匹，需要专用流媒体服务器与传输协议。()

将彼此相关的一组指标变量转化为彼此独立的一组新变量，可用主成分分析。()