34Mn6的34表示的是含碳量为（）。 A.34% B.3.4％ C.0.34%

主轴润滑的目的是为了（）。

A、减少摩擦

B、带走主轴组件热量

C、提高传动效率和回转进度。

D、ABC都包括

Say sorry to your wife---it may help her live longer, according to scientists.

“Sorry” may be the hardest word, but scientists say it could be one of the healthiest. Researchers have discovered that women who receive an apology for hurtful behavior suffer less stress and possible damage to their heart than those who don’t.

It is said that the heartbeat of a wronged woman returns to normal 20 percent quicker after a well-timed “sorry” than without it. But for men, their heartbeat takes longer to recover, according to the research.

The research was undertaken by American scientists using 29 men and 59  women whose diastolic blood pressure was measured throughout an experiment. Diastolic blood pressure

is a measure of pressure in the blood vessels( 血管 ) between heartbeats---if it is continuously high it can increase the chances of heart attacks.

The men and women were asked to undertake a difficult mathematical task. They were told they had five minutes to complete it but were disturbed after a minute and told rudely to carry out the task more quickly. They were disturbed twice more before five minutes had passed and told to speed up. Finally they were told, “ You’re obviously not good enough.” Two minutes later researchers said sorry to half of the men and women.

The researchers found that, on average, the women’s diastolic blood pressure dropped back to normal 20 percent---quicker if they received an apology from the researchers, while the men’s took 20 percent longer to return to normal. One of the researchers said, “Results indicates that the effects of apology and forgiveness on women are greater.”

小题1:The term “sorry” is considered as one of the healthiest words because it _________.

A．is the most powerful

B．can cure heart disease

C．helps people forget hurtful behavior

D．can reduce pressure and damage to the heart小题2:We can know from Paragraph 3 _________.

A．women’s hearts beat faster than men’s

B．women are quicker at making apologies

C．men can forgive others’mistakes more easily than women

D．men stay angry for a longer time than women after receiving an apology小题3:Which of the following is the RIGHT time order for events in the study?

a. Half of them received apologies.

b. They were disturbed a minute later.

c. They were told that they weren’t good enough.

d. They were asked to finish a math task in five minutes.

e. They were disturbed two more times during the study.

A．d-b-c-e-a

B．d-c-b-a-e

C．d-b-e-c-a

D．d-c-b-e-a小题4:The research confirmed (证实) that _________.

A．men are unwilling to apologize to others for their mistakes

B．men’s chances of getting heart attacks are higher than women’s

C．women can benefit more from receiving apologies than men

D．people can also get healthy benefits from giving apologies

1996年夏季，某旅行社受某公司委托，组织安排该公司部分职工前往某海滨旅游度假。据行程计划安排，该旅行社导游李某带团前往甲海滩。不料，通往甲海滩的道路因发生严重车祸，已被交警部门封闭。鉴于此种情况，导游李某经旅行社同意，并征得旅游者同意后，带团去了乙海滩(乙海滩未经旅游开发，无安全救助设施)，部分游客在乙海滩游泳时，因风大浪急，两名旅游者不慎身亡。经查，在旅游者身亡之前，导游李某未就乙海滩的情况向旅游者作真实的说明，也没有提出明确的警示及采取必要的预防措施。
请问：本案中谁应当承担责任 应承担什么样的责任

政治与法律制度是人类文明的重大成果，请你透过现象发现过去时代的特性，从而解读发生在不同时空的政治文明。阅读下列材料，结合所学知识探究问题。

材料一法自君出，皇帝“钦定”法律，皇权置于法律之上。这遗风流传至今即权大于法，有法不依，拟法不严，徇情枉法。

——史仲文《中国人走出死胡同》

材料二《中华民国临时约法》规定：中华民国主权属于国民全体；国内各民族一律平等；……确立行政、立法、司法三权分立的政治体制。

——《历史》必修1

材料三美国的国家职权分为立法、司法和行政三个部门，分别由国会、最高法院和总统执掌，总统和议员由人民选举产生……

——摘编自《美国1787年宪法》

材料四第一条中华人民共和国是工人阶级领导的、以工农联盟为基础的、人民民主专政国家。

第二条中华人民共和国的一切权力属于人民。人民行使权力的机关是全国人民代表大会和地方各级人民代表大会。

——1954年《中华人民共和国宪法》

1954年宪法是哪次会议上制定的？该宪法体现了哪两大原则？

试述染色质结构与基因转录的关系。