无土栽培时,水基质的一大缺点是()。A、使用方便 B、pH值适中 C、水质较纯净 D

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问题:

无土栽培时,水基质的一大缺点是()。

A、使用方便

B、pH值适中

C、水质较纯净

D、通气条件差,含氧量不够

考点:园艺工考试高级花卉工考试高级花卉工考试题库
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财务活动包括( )等一系列行为。

A.投资

B.资金营运

C.筹资

D.资金分配

题型:单项选择题

(2013•聊城一模)下列图示与对应的叙述相符的是(  )

A.图Ⅰ表示某放热反应在无催化剂(a)和有催化剂(b)时反应的能量变化

B.图Ⅱ表示一定条件下进行的反应2SO2+O2⇌2SO3各成分的物质的量变化,t2时刻改变的条件可能是增加了SO3

C.图Ⅲ表示某明矾溶液中加入Ba(OH)2溶液,沉淀的质量与加入Ba(OH)2溶液体积的关系,在加入20 mL Ba(OH)2溶液时铝离子恰好沉淀完全

D.电导率可表示溶液导电性的强弱,电导率越大导电性越强.图Ⅳ可表示向盐酸和醋酸混合溶液中滴入氨水过程中电导率的变化关系

题型:单项选择题

阅读理解。

     I live in Hollywood. You may think people in such an attractive, fun-filled place are happier than others.

If so, you have some mistaken ideas about the nature of happiness.

     Many intelligent people still equate happiness with fun. The truth is that fun and happiness have little or

nothing in common. Fun is what we experience during an act. Happiness is what we experience after an act.

It is a deeper, more abiding emotion.

     Going to an amusement park or a ball game, and watching a movie or television, are fun activities that

help us relax, temporarily orget our problems and maybe even laugh. But they do not bring happiness, because

their positive effects end when the fun ends.

     I have often thought that if Hollywood stars have a role to play, it is to teach us that happiness has nothing

to do with fun. These rich, beautiful individuals have constant access to glamorous parties, fancy cars,

expensive homes, everything that spells "happiness".

     But in memoirs (回忆录), celebrities reveal the unhappiness hidden beneath all their fun: depression,

alcoholism, drug addiction, broken marriage, troubled children and profound loneliness.

     The way people stick to the belief that a fun-filled, pain-free life equates happiness actually reduces their

chances of ever obtaining real happiness. If fun and pleasure are equated with happiness, then pain must be

equated with unhappiness. But, in fact, the opposite is true: More times than not, things that lead to happiness

involve some pain.

     As a result, many people avoid the very endeavors that are the source of true happiness. They fear the pain

inevitably brought by such things as marriage, raising children, professional achievement, religious commitment,

civic or charitable work, and self- improvement.

1. What does the author want to tell us?

A. He lives in Hollywood, so he feels unhappy.

B. The true meaning of happiness.

C. In fact, famous people are not very happy.

D. Happiness is not equal to fun.

2. What is many intelligent people's viewpoint about happiness?

A. Happiness just means having fun.

B. Happiness is not equal to fun.

C. Happiness means doing what you like.

D. Happiness means being rich.

3. What does the underlined word "equate" in the second paragraph mean?

A. compare

B. think

C. similar or connected

D. match

4. According to the passage, the author may agree ____.

A. amusement park can bring us happiness

B. fun will bring some happiness to us

C. pain will bring us happiness

D. efforts can bring us happiness

题型:单项选择题

生产成本形成后,商品价值构成公式变成为()。

A.w=c+v+m

B.w=c+v+p

C.w=k+m

D.w=k+p+h

题型:单项选择题

肛门指诊的正确方法是 ( )

A.探查示指与肛门口垂直

B.探查示指先在肛门轻轻按摩

C.探查示指通过肛门后快速插入直肠

D.探查示指不戴手套即进行指诊

E.探查示指不要等待肛门括约肌放松后才进行指诊

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