简述形象积累与形象观察的关系。

已知函数f（x）的定义域[0，1），则函数f（cosx）的定义域是______．

阅读下面短文，并按照题目要求用英语回答问题。（请将答案写在答题卡上相应番号后的横线上）

Perhaps you are an average student with average intelligence. However, you can receive better grades if you want. Yes, even students with average intelligence can be top students without additional work. Here’s how:

1．Plan your time carefully. Make a list of your weekly tasks. Then make a schedule of your time. Be sure to set aside enough time to complete your normal reading and work assignments. Of course, studying shouldn’t occupy all of the free time on the schedule.

2．Make good use of your time in class. Listening to what the teacher says in class means less work later. Take notes to help you remember what the teacher says.

3．Skim before you read. Look over a passage quickly before you begin to read it more carefully. As you preview the material, you get some idea of the content and how it is organized. Later when you begin to read you will recognize less important material and you may skip some of these portions, Skimming(略读)helps double your reading speed and improve your comprehension as well.

4．      . Go over your notes as soon as you can after class. Review important points mentioned in class as well as points you remain confused. If you know what the teacher will discuss the next day, skim and read that material, too. If you review your notes and textbook regularly, the material will become more meaningful and you will remember it longer. Regular review leads to improved performance on tests.

5．Develop a good attitude towards tests. The purpose of a test is to show what you have learned about a subject. The world won’t end if you don’t pass a test, so don’t worry excessively（过分地）about a single test.

There are other techniques that might help you with your studying. Improving your studying habits will improve your grades.

小题1:Which sentence in the passage can be replaced by the following one?

If you fail an exam, don’t let it trouble you too much.

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小题2:According to the passage, how can an average student improve his/her grades?(within 10 words)

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小题3:Please fill in the blank in the fifth paragraph with a proper sentence. (within 10 words)

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小题4:Which tip do you think is the most useful? Why? (within 20 words)

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小题5:Translate the underlined sentence in the fourth paragraph into Chinese.

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齿状线以下的结构是_____。

患者男，15岁。颈部淋巴结肿大，皮肤瘙痒，间歇性发热3个月。查体：脾大，左肋下3cm，颈淋巴结活检为霍奇金病。

HD最常见的自发症状为（）

A.贫血

B.脾大

C.无痛性颈部淋巴结肿大

D.间歇性发热

E.皮肤瘙痒

F.胸闷气促

初步设计阶段可分为三阶段设计、两阶段设计、一阶段设计三种情况？