资产管理人为了尽可能分散风险，可以根据自己的判断来进行资产配置和选择资产。

直接生成碳-碳键的反应是实现高效、绿色有机合成的重要途径．交叉脱氢偶联反应是近年备受关注的一类直接生成碳-碳单键的新反应．例如：

化合物I可由以下合成路线获得：

（1）化合物I的分子式为______，其完全水解的化学方程式为______（注明条件）．

（2）化合物II与足量浓氢溴酸反应的化学方程式为______（注明条件）．

（3）化合物III没有酸性，其结构简式为______；III的一种同分异构体V能与饱和NaHCO₃溶液反应放出CO₂，化合物V的结构简式为______．

（4）反应①中1个脱氢剂IV（结构简式如图）分子获得2个氢原子后，转变成1个芳香族化合物分子，该芳香族化合物分子的结构简式为______．

（5）1分子与1分子在一定条件下可发生类似①的反应，其产物分子的结构简式为______；1mol该产物最多可与______　molH₂发生加成反应．

A popular saying goes, “Sticks and stone may break my bones, but words will never hurt me.” However, that’s not really true. Words have the power to build us up or tear us down. It doesn’t matter if the words come from someone else or ourselves – the positive and negative effects are just as lasting.

We all talk to ourselves sometimes. We’re usually too embarrassed to admit it, though. But we really shouldn’t be, because more and more experts believe talking to ourselves out loud is a healthy habit.

This “self-talk” helps us motivate ourselves, remember things, solves problems, and calm ourselves down. Beware, though, that as much as 77% of self-talk tends to be negative. So in order to stay positive, we should only speak words of encouragement to ourselves. We should also be quick to give ourselves a pat on the back. The next time you finish a project, do well in a test, or finally clean your room, join me in saying, “Good job!”

Words possess power because of their lasting effects. Many of us regret something we once said. And we remember unkind words said to us! Before speaking, we should always ask ourselves: Is it true? Is it loving? Is it needed? If what we want to say doesn’t pass this test, then it’s better left unsaid.

Words possess power: both positive and negative. Those around us receive encouragement when we speak positively. We can offer hope, build self-esteem(自尊) and motive others to do their best. Negative words destroy all those things. Will we use our words to hurt or to heal? The choice is ours.

小题1:The author argues in the first paragraph that ________.

A．words will never hurt us at all

B．words have lasting effects on us

C．positive effects last longer than negative effects

D．negative words last longer than positive effects小题2:Why should we not feel embarrassed when talking to ourselves?

A．Almost everybody has the habit of talking to oneself.

B．It does harm to have “self-talk” when we are alone.

C．Talking to ourselves helps us to solve all the problems.

D．Talking to ourselves is believed to be good for our health.小题3:The underlined phrase “give ourselves a pat on the back” in Paragraph 3 means _________.

A．blame ourselves

B．punish ourselves

C．praise ourselves

D．talk to ourselves小题4:Which of the following statements would the author agree to?

A．It is better to think twice before talking to others.

B．It is impossible for unkind words to be forgotten.

C．Words always possess long positive effects.

D．Kind words are sometimes not needed at all.

取水权人的义务不包括（）。

A.取水权人应依照国家的有关规定缴纳利用水资源的有关费用

B.取水权人应遵循国家对取水范围、取水地点、取水量、取水方式的有关规定

C.因取水活动给他人的生产、生活造成损失的，应承担赔偿责任

D.取水权人必须保护水资源不受污染，维护水源附近的生态平衡和自然环境

一台X线机带有两只X线管时，完成X线管切换的部件是

A．高压交换闸

B．继电器

C．限时器

D．高压电缆

E．电源开关

报检时需提供国外官方提供的品质证书。 ( )