附子强心作用的有效成分是( ) A.挥发油 B.乌头碱 C.去甲乌药碱 D.中乌头

题型:单项选择题

问题:

附子强心作用的有效成分是( )

A.挥发油
B.乌头碱
C.去甲乌药碱
D.中乌头碱
E.次乌头碱

考点:药学职称考试中药师相关专业知识初级中药师相关专业知识
题型:单项选择题

阅读理解。

     As any homemaker who has tried to keep order at the dinner table knows, there is far more to a family meal

than food. Sociologist Michael Lewis has been studying 50 families to find out just how much more.

     Lewis and his co-workers carried out their study by videotaping (录像) the families while they ate ordinary

meals in their own homes. They found that parents with small families talk actively with each other and their

children. But as the number of children gets larger, conversation gives way to the parents' efforts to control the

loud noise they make. That can have an important effect on the children. "In general the more question-asking

the parents do, the higher the children's IQ scores," Lewis says. "And the more children there are, the less

question-asking there is." The study also provides an explanation for why middle children often seem to have a

harder time in life than their siblings (兄弟姐妹). Lewis found that in families with three or four children, dinner conversation is likely to center on the oldest child, who has the most to talk about, and the youngest, who needs the most attention. "Middle children are invisible," says Lewis. "When you see someone get up from the table and walk around during dinner, chances are it's the middle child." There is, however, one thing that stops all

conversation and prevents anyone from having attention: "When the TV is on," Lewis says,"dinner is a

non-event."

1. The writer's purpose in writing the text is to ______.

A. show the relationship between parents and children

B. teach parents ways to keep order at the dinner table

C. report on the findings of a study

D. give information about family problems

2. Parents with large families ask fewer questions at dinner because _______.

A. they are busy serving food to their children

B. they are busy keeping order at the dinner table

C. they have to pay more attention to younger children

D. they are tired out having prepared food for the whole family

3. By saying "Middle children are invisible" in paragraph 3, Lewis means that middle children ______.

A. have to help their parents to serve dinner

B. get the least attention from the family

C. are often kept away from the dinner table

D. find it hard to keep up with other children

4. Lewis' research provides an answer to the question ______.

A. why TV is important in family life

B. why parents should keep good order

C. why children in small families seem to be quieter

D. why middle children seem to have more difficulties in life

5. Which of the following statements would the writer agree to?

A. It is important to have the right food for children.

B. It is a good idea to have the TV on during dinner.

C. Parents should talk to each of their children frequently.

D. Elder children should help the younger ones at dinner

题型:单项选择题

对报价低于标底( )的投标书,如无充分理由证明能够保证降低造价的,评价时可不予考虑。

A.20%

B.40%

C.10%

D.50%

题型:单项选择题

固定资本的折旧率与

A.折旧费同方向变化,与固定资本原始价值反方向变化

B.折旧费反方向变化,与固定资本原始价值同方向变化

C.折旧费同方向变化,与固定资本原始价值同方向变化

D.折旧费反方向变化,与固定资本原始价值反方向变化

题型:单项选择题

需要业主派咨询工程师到制造现场进行监督检查的是( )。

A.机械设备制造过程

B.材料生产过程

C.货物运送过程

D.检查验收过程

题型:单项选择题

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