题目内容

下列说法正确的是()。

A. 异众比率的作用是衡量众数对一组数据的代表程度
B. 异众比率越大,则众数的代表性越好
C. 异众比率不宜用来比较不同总体
D. 定类尺度数据不能计算异众比率

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()是专属于人和人类社会的范畴。

A. 繁行后代
B. 群居生活
C. 沟通交流
D. 劳动

Word Form
将括号中的各词变为适当的形式填入空白。答案写在答题卡上。
56、 You need to have___ (patient). The economy will improve soon.
57、 The infant's self-esteemn is totally___ (depend) on family members.
58、 The insurance agent tried to _____ (fright) her into buying the most expensive house insurance.
59、 My hair is much more___ (manage) since I have had it cut short.
60、 Necessary___ (provide) has been made against flood.
61、 The event went____ (surprise) well, considering the bad weather.
62、 The parts are made in this factory and then shipped to another country for____ (assemble).
63、 Marriage is a serious ____ (commit), one that isn't taken lightly for most people
64、 Don't worry about (formal) at my parents' house. It's always easy and free there.
65、 The main forms of _______ (verbal) communication include gestures, eye contact,
external appearance and clothing etc.

在MRI设备中,关于主磁体价值的描述,哪项错误()

A. 直接关系到磁场强度
B. 直接关系到磁场均匀度
C. 直接关系到磁场稳定性
D. 不影响MRI图像质量
E. 用以说明MRI设备类型

In order to solve the pollution problems that began from the mid-20th century, a number of environmental protection organizations have formed. However, the most important pollution fighter is perhaps each individual person. If everyone makes the effort, pollution can be greatly reduced,
In a way, some pollution can be controlled in daily life. For example, solid wastes are a major cause of land pollution, but many wastes, such as empty cans, glass bottles, old car tires and newspapers, can be recycled. Some places pay people to bring in used goods for recycling. Moreover, one major factor in air pollution is that many people use cars needlessly. So public transportation, bicycles, and walking are all good choices to prevent pollution.

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