《车用气瓶安全技术监察规程规定》规定：不得将非车用气瓶改装为车用气瓶。

关于药物pKa下述哪种解释正确？

A．在中性溶液中药物的pH值

B．药物呈最大解离时溶液的pH值

C．是表示药物酸碱性的指标

D．药物解离50％时溶液的pH值

E．是表示药物随溶液pH变化的一种特性

Anyone who doubts that children are born with a healthy amount of ambition need spend only a few minutes with a baby eagerly learning to walk or a headp toddler starting to talk. No matter how many times the little ones stumble in their initial efforts, most keep on trying, determined to master their amazing new skill. It is only several years later, around the start of middle or junior high school, many psychologists and teachers agree, that a good number of kids seem to lose their natural drive to succeed and end up joining the ranks of underachievers. For the parents of such kids, whose own ambition is often inseparately tied to their children’s success, it can be a bewildering, painful experience. So it is no wonder some parents find themselves hoping that ambition can be taught like any other subject at school.
It’s not quite that simple. "Kids can be given the opportunities, but they can’t be forced," says Jaequelynne Eccles, a psychology professor at the University of Michigan who led a study examining what motivated first-and-seventh-graders in three school districts. Even so, a growing number of educators and psychologists do believe it is possible to unearth ambition in students who don’t seem to have much. They say that by instilling confidence, encouraging some risk taking, being accepting of failure and expanding the areas in which children may be successful, both parents and teachers can reignite that innate desire to achieve.
Dubbed Brainology, the unorthodox approach uses basic neuroscience to teach kids how the brain works and how it can continue to develop throughout life. The message is that everything is within the kids’ control, that their intelligence is

malleable

.
Some experts say our education system, with its p emphasis on testing and rigid separation of students into different levels of ability, also bears blame for the disappearance of drive in some kids. Some educators say it’s important to expose kids to a world beyond homework and tests, through volunteer work, sports, hobbies and other extracurricular activities. "The crux of the issue is that many students experience education as irrelevant to their life goals and ambitions," says Michael Nakkula, a Harvard education professor who runs a Boston-area mentoring program called Project IF (Inventing the Future), which works to get low-income underachievers in touch with their aspirations. The key to getting kids to aim higher at school is to tell them the notion that classwork is irrelevant is not true, to show them how doing well at school can actually help them fulfill their dreams beyond it. Like any ambitious toddler, they need to understand that they have to learn to walk before they can run.

The word "bewildering" underlined in Paragraph 1 is closest in meaning to ______.

A．puzzling

B．unbelievable

C．unpleasant

D．awkward

杨吉利诉马晃华离婚一案，一审法院判决离婚，杨吉利认为法院偏袒马晃华，在宣判时，谩骂审判人员，并且冲上审判席，将审判长的脸抓伤，严重扰乱法庭秩序，情节恶劣，依法应当追究刑事责任。在这种情况下，以下说法正确的是：

A．刑事审判庭直接受理

B．由审理该案的审判组织直接予以判决

C．由审理该案的审判组织交由刑事审判庭审理

D．杨吉利有权委托诉讼代理人

公司经营管理发生严重困难，继续存续会使股东利益受到重大损失，通过其他途径不能解决的，持有公司全部股东表决权（）以上的股东，可以请求人民法院解散公司。

A.10%

B.20%

C.30%

D.50%

中央银行降低再贴现率，将使货币供应量减少。( )