题目内容
（请给出正确答案）
We must get up early tomorrow, _________we will miss the 7 o'clock train to Beijing.
A．so
B．or
C．but
D．however
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We will be using the bfi data (bfi is a data frame available in R), which has 28 variables, and 1000 observations. The data are the results of a study of 1000 individuals who were asked to rate themselves on a Likert scale of 1 to 6. The last three variables in the data frame report age, education and gender. VARIABLE INTERPRETATION A1 Indifferent to others A2 Inquire about others’ well-being A3 Know how to comfort others A4 Love children A5 Make people feel at ease C1 Exacting in my work C2 Continue until everything is perfect C3 Do things according to a plan C4 Do things in a half-way manner C5 Waste my time E1 Don’t talk a lot E2 Find it difficult to approach others E3 Know how to captivate people E4 Make friends easily E5 Take charge N1 Get angry easily N2 Get irritated easily N3 Have frequent mood swings N4 Often feel blue N5 Panic easily O1 Am full of ideas O2 Avoid imposing my will on others O3 Carry the conversation to a higher level O4 Spend time reflecting on things O5 Will not probe deeply into a subject Question 1 : Perform both principle component analysis and factor analysis on bfi dataset(except age, gender and education), how many factors/components are extracted? Question 2: Draw a diagram with factor analysis loadings based on the results of question 1 (only show the biggest loading per item). Read the table above, understand the meaning of each item, and try to name one of the factors/components extracted in question 1.
A、a heavy traffic
B、heavy traffics
C、heavy traffic
D、the heavy traffics
A．to choose
B．for choosing
C．to choose from
D．to be chosen from
A．have made
B．have become
C．have been
D．have turned
A．birds and parasites
B．birds and sheep
C．parasites and sheep
D．sheep, birds and parasites
Young architects then usually learned their skills by working in the drafting rooms(绘图室)of professional architects. Most architects didn't want to employ women. But Louise managed to make a well-known architect give her a chance.
She worked from six in the morning to six in the evening. She wasn't paid much. But she learned much as she worked. And her employer allowed her to use his large library.
In 1881, after five years of work and study, Louise set up her own office. She advertised that "the first professional woman architect in the country was ready for business."
Louise insisted that she would not be limited to design private homes just because she was a woman. She sought out a variety of jobs and designed chapels(小教堂), storage buildings,factoties and schools. She did very well, inspiring other women to become architects. She often spoke out for fair treatment for women and equal pay equal work.
When Louise Bethune was a girl, she liked to_______.
A．read picture-books of building
B．play toy-building with other girls
C．plan houses and other buildings
D．plan models of buildings
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