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【单选题】
An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points. The popular use of right hand was and is believed to relate to the physical differences between the two sides of the brain, and there is also some historical evidence. Answer ChoicesA.
Scientists believe that subtle physical differences between the two sides of the brain are demonstrated by physical differences between the right and left sides of the interior of the skull.
B.
Scratches on fossil human teeth also provide information for the relation of the popular use of right hand to the physical differences between the two sides of the brain.
C.
The human figures represented in the paintings appear to be less carefully shaped than those of animals.
D.
Those humans have been predominantly right-handed for more than 5000 years.
E.
Cro-Magnon cave paintings present outlines of human hands in which one hand is placed against the cave wall while the other is applying paint.
F.
The evidence found in anthropological studies shows that the record of handedness in early human ancestors can be traced back to at least 1.4 million years ago. The word daunting in Paragraph 1 is closest in meaning to ______. A．solvable B．frightening C．promising D．intrepid
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【单选题】某论坛曾贴出一个“招聘兼职神秘顾客，吃饭报销，另有报酬”的帖子，引来众多网友的关注。 发帖者为某管理咨询公司。该公司称，他们受某快餐企业委托，聘请兼职人员随机到该企业各门店内购买快餐，在门店员工不知情的情况下，监督他们的服务流程；同时，为其提高一线运营能力提供最真实、及时的现场监督结果，并提供咨询及改善建议。 而他们的雇主——某快餐企业也声称，企业正在接受管理者咨询和培训服务，这个项目旨在帮助门店...
A.
不断革新监督和管理措施。
B.
制定严格的规章制度。
C.
加强现场监督
D.
关注产品和服务的品质。
【简答题】1,已知点A(5,4,3),点B(7,6,4),求A、B的距离。 2,已知点M(-3,0,4),求M与原点的距离。
【简答题】已知点A、B在数轴上分别表示m、n （1）填写下表： m 5 -5 -6 -6 -10 n 3 0 4 -4 2 A、B两点的距离 （2）若A、B两点的距离为d，则d与m、n有何数量关系？ （3）在数轴上是否存在整数点P，使它到3和-2的距离之和为7？若存在，请写出所有符合条件的整数；若不存在，请说明理由．
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