What is the main idea of the third paragraph?
A．An ecosystem is a community that includes animals, plants, and microscopic bacteria.
B．Local ecosystems depend on each other, so human activity should be cautiously planned.
C．In managing the ecology of an area, we should use natural succession to our advantage.
D．People should remember that they are a part of the ecosystems where they live and work.

未分类题执行crm战略时，需要注意的与“客户关怀”有关的要素包括()。

未分类题Which of the following is NOT true about behavioral economics?A．People coming up with Stealth Health apply this subject.B．It focuses on the way people make their decisions.C．It mainly pays attention to how environment affects people's decision.D．It advocates leading people to make right decisions while giving enough options.

未分类题Which is the authors attitude towards Stealth Health?

未分类题管理的特征是()。

未分类题It can be concluded from the text that______.A．the phenomenon of shyness is incurableB．the shyness is not something a child can easily controlC．the shyness is a brain defect that may require outside helpD．the shyness is a normal part of all children to some extent or another

未分类题By writing Paragraph 1, the author intends to______.A．prove the accuracy of Yale's studyB．introduce the theory mentioned belowC．demonstrate the importance of eating fruitsD．claim children are fascinated about X-ray

未分类题The first paragraph of the text deals mainly with the earth atmospheres______.A．sheltering effectB．reviving effectC．invigorating effectD．cleansing effect

未分类题班级教养工作计划的实施与检查包括()。

未分类题会计账簿按其用途不同可以分为()。

未分类题According to the text, it is not surprising that______.A．business and education find so much in commonB．politicians expect education to be like businessC．the education world is managed by people from the business philosophyD．those who come from the business world think education should serve industry needs

未分类题内部选聘的优势在于()。

未分类题One of the reasons that university presses over-published was______.A．that they want to compensate money that some books loseB．that they didn't estimate their market correctlyC．that the libraries refused to buy them so they were stuck with too manyD．that they felt obligated to service the academic community

未分类题By saying university presses have moved 'so far into the trade marketplace'(line 1, para. 3)the author means to make what point?A．University presses are now selling in private outlets rather than the library.B．University presses are using profit criteria in their decisions.C．University presses are now making profits even though they are not supposed to.D．University presses are neglecting their civic and public duty.

未分类题Much of the damage in past earthquakes could have been prevented by______.A．more frequent use of seismographsB．better construction of buildingsC．quicker methods of evacuationD．international cooperation

未分类题According to the text, the experience of shyness can be measured______.A．by brain imaging experiments with young childrenB．by measuring the size of the amygdalaC．by the degree of social phobia an individual hasD．by using an MRI machine with adults