当称量物品时，开启天平后，指针到某处聚然停止，可能的原因是（） A.天平零点有问题

读我国沿海四大工业基地分布图，完成下列要求。

（1）写出图中字母代表的我国四大工业基地名称。A．______________，B．______________，C．______________，D．______________。

（2）A基地是我国著名的______________基地；B基地__________资源缺乏，是影响该地经济发展的重要自然原因；位于C基地我国最林的工业城市是__________；D基地紧邻________和澳门，是我国对外开放的前沿。

（）mm是实际剪切2～6mmQ235碳钢时刀片间隙。

A、0.1

B、0.15

C、0.2

D、0.25

Canadian experts have found that so – called self – help books may actually do more harm than good to people who really need help．Researchers say that individuals （个人） with low respect felt much worse after repeating positive statements about themselves．

In their study, psychologists Joanne Wood and John Lee sought to determine how positive thinking affected people with different levels of self – confidence．They questioned dozens of people both made and female, analyzed their self – worth and optimism by means of the standard psychological methods and then asked them to write down their thoughts and feelings．The scoring system ranged from 0 to 35．

During the experiment, the researchers asked a total of 68 participants to repeat the self-help book phrase, “I am a lovable person．” After that they measured the participants’ moods and their feelings about themselves．The results revealed that the participants in the low self – respect group who repeated the mantra （颂歌）, were feeling much worse afterwards, when compared to other participants in low self – respect group who did not repeat the phrase．Those with low self – respect who repeated the phrase scored an average of 10 points．Their counterparts （对比者） with equally low self – respect who were not asked to repeat the statement, were able to score a little higher average of 17 points．

However, individuals with high self – respect reported feeling better after repeating the positive self – statement – but only slightly．They scored an average of 31 points, compared with an average of 25 for those with equally high self – respect who did not repeat the phrase．

Professor Wood urged those who promote self – help books, magazines and television shows to stop telling people that simply repeating a positive mantra could change one’s life．First, people start following this idea and feel like they are not alone．They are told that all they have to do is just to read that book and then to repeat these positive statements in a hope that things will be better, and when it does not work for them and they realize that nothing gets better, then it is really frustration to people．

Researchers concluded: “Repeating positive self – statements may benefit certain people such as individuals with high self – respect but discourage the very people who need confidence the most．”

小题1:The experts tried to find out, when repeating positive self – statements,         ．

A．the different influences on people with different levels of self - confidence

B．whether males or females will get more benefit from self – help books

C．which group of people self – help books will do the greatest harm to

D．who will get the least benefit from self – help book小题2:How many points did the low self – respect participants get after repeating the self – help book phrase?

A．An average of 10 points．

B．An average of 17 points．

C．An average of 31 points．

D．An average of 25 points．小题3:So – called self – help books do some good to          ．

A．people lacking confidence

B．people with high self - respect

C．people with problems to settle urgently

D．people repeating positive self – statements

下列关于我国民族区域自治制度的表述，不正确的是（　 ）

A．民族区域自治是我国的一项基本政治制度

B．其内容是在少数民族聚居的地方，建立自治区和自治机关，行使自治权

C．体现了民族平等、民族团结和各民族共同发展繁荣的原则

D．最早规定该制度的法律文件是1954年《中华人民共和国宪法》

块状构造