过去五年,经济保持中高速增长,在世界主要国家中名列前茅,国内生产总值从五十四万亿元增长到()万亿元,稳居世界第二,对世界经济增长贡献率超过百分之三十。
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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
()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