装货单联一般由三联组成，即（）.A.第一联底单 B.第二联装货单 C.第三联收货单

下列说法不正确的是[ ]

A．生物能对外界刺激作出反应

B．生物必须从身边环境中捕食获得营养

C．生物都能生长、繁殖

D．生物在生命过程中都能进行新陈代谢

在氧化物RO中含氧元素40％，则R的相对原子质量是[ ]

A. 20

B. 24

C. 40

D. 60

衡量厅堂音质的优劣，不仅需要客观指标的测量，还需人耳的______。

阅读理解。

     If you do not use your arms of your legs for some time, they become weak. When you start using them

again, they slowly become strong again. Everybody knows this. Yet there are many people who do not seem

to know that one's memory works in the same way. When someone says that he has a good memory, he

really means that he keeps his memory in practice by exercising it regularly. When someone else says that

his memory is poor, he really means that he does not give it enough chance to become strong.

     If a friend complains that his arms are weak, we know that it is his own fault. But if he tells us that he

has a poor memory, many of us think that his parents are to blame, or that he is just unlucky, and few of us

realize that it is really his own fault. Not all of us can become very strong or very clever, but all of us can

improve our memory by the same means-practice.

     Have you ever noticed that people who cannot read or write usually have a better memory than those

who can? Why is this? Of course, because people who can't read or write have to remember things: they

cannot write them down in a little notebook. They have to remember dates, prices, names, songs and stories,

so their memory is exercised all the time.

     So if you want a good memory, learn from those who cannot read or write: practice remembering.

1. According to the passage, few people know that _______.

A. arms or legs become weak if they are not used for some time

B. when they start using their arms of legs again, they slowly become strong again

C. a person's memory becomes weak if he does not practice remembering things

D. it is their own fault if their arms or legs are weak

2. The author thinks that if a person has a poor memory, ________.

A. it is his own fault

B. his parents are to blame

C. he is just unlucky

D. his arms must be weak

3. According to the passage, we can learn that all of us can ________.

A. become very strong

B. become very clever

C. improve our memory by practicing

D. know how to improve our memory

4. From Paragraph 3, we can learn that ________.

A. people who can't read are cleverer than those who can

B. people who can't write are cleverer than those who can

C. a little notebook helps people who cannot read or write get a better memory

D. people who practice remembering regularly have a better memory

5. The passage mainly tells us ________.

A. how to get our arms and legs stronger

B. how to improve our memory

C. how to read and write

D. how to remember dates and prices

纳税人按规定委托金融机构理财取得的收入按（）的有关规定征收企业所得税。