The main idea of the second paragraph is______.
A．diversity of the workforce has its disadvantages
B．besides new opportunities, the changing workforce also contain challenges
C．the low educational levels of immigrants is a challenging problem
D．America had better face the problem of declining skills or it will suffer

未分类题The invention of the method of altering childrens behavior. is owing to______.A．the desirable behaviorB．reinforced practiceC．decades of studyD．replacement of unwanted behaviors

未分类题Which of the following is NOT one of the factors affecting the result of changing childrens behavior?A．The reinforced practice of the positive opposite.B．The way parents behave at home.C．The influences of other relationships of children.D．The separation of the parents of young children.

未分类题According to the author, the entertainment he discusses was so popular because______.A．people didn't know they were being trickedB．people liked the performances and the chance to test their own judgmentC．people had a double consciousness of love and hate of itD．people merely treated it an interesting game of deciding which was real and not

未分类题It can be concluded from the text that______.A．the entertainment died out as society became more skepticalB．the skills the entertainment employed were part of its ultimate demiseC．the entertainment used highly skilled understanding of human natureD．the entertainment served a very important part role in the lives of people

未分类题By mentioning microbe, the author intends to______.A．advocate that animals with a nervous system can all learnB．argue that learning is an adaptation to a changing environmentC．claim that learning has some kind of side effectsD．prove that the adaptation may not include learning with a nervous system

多项选择题按照组织形式分类，企业有（）。

A.流通性企业
B.公司制企业
C.合伙企业
D.生产性企业
E.个人独资企业

未分类题We can learn from Paragraph 2 that______.A．there's no obvious connection between red wine and people's healthB．drinking 15-ounces red wine can do good to women's healthC．a cholesterol in red wine can form. fatty deposits in arteriesD．an ingredient in red wine may prevent heart attack

未分类题By mentioning the French Paradox, the author intends to______.A．prove the polyphenol in red wine can prevent illness and promote longevityB．demonstrate a program has paid attention to the value of red wine long beforeC．state Americans have an obsessive interest in red wine's benefitD．explain the reason for Americans' fixation for red wine's function

未分类题The underlined word in Paragraph 2 refers to______.A．expertsB．fakingC．influenceD．researching

未分类题Which of the following is one of the authors points of view?A．Resveratrol can protect people from radiation poisoning.B．Resveratrol can postpone aging process and prevent aging-related diseases.C．Americans are particularly fascinated about the value of red wine.D．The low rate of heart disease in France is owing to drinking red wine.

未分类题数据仓库的要素包含有()。

未分类题The author is of the opinion that those who worry about losing employees after they graduate are______.A．uninformed of the fact that they rarely doB．failing to consider the possible benefits even if it does happenC．not considering the ways that this can be preventedD．worrying over nothing

未分类题The best title for this text would be______.A．The Advantages and Disadvantages of Tuition ReimbursementB．Tuition Reimbursement Should Be TriedC．Unconditional Tuition Reimbursement Can Pay OffD．Why Tuition Reimbursement Is Resisted

未分类题Which of the following is true about the Braess paradox?A．A mathematician of a university in Seoul came up with it.B．People first identified it in the 1920s.C．The Americans didn't pay much attention to it in the first place.D．It claims that more capacity brings about more efficiency.

未分类题Why does the author assert that only through travel we 'truly touch one another'?A．He wants to emphasize tourism's powerful effect on combating social problems.B．He believes tourism makes it possible for people to help one another.C．He believes travel is the only way cultures can learn about each other.D．He thinks that sincere learning of a culture is only possible by travel.