结核性脑膜炎脑脊液特点有A．压力增高 B．外观无色透明 C．糖和氯化物降低 D．细胞

使用撬棒，救援队员把滚落在公路上的石块撬起，如图所示，若救援队员在撬棒D点沿DM 方向用力撬起石块1，撬棒的支点是______点；若救援队员在撬棒D点沿DN方向用力撬起石块1，撬棒的支点是_______点。

阅读表达。阅读下面的短文，并根据短文后的要求答题。（请注意问题后的词数要求）

     [l]Every language has its own special words and expressions. And a story can be told about each of them.

Hot is a simple, easily understood word. So are most of the expressions made with the word hot. But not always, as we shall see.

     [2]The words hot potato, for example, give you no idea at all to the meaning of the expression, hot potato.

The potato is popular and many Americans like baked potatoes. Imagine trying to carrv a hot potato in your

hand. It would be difficult, even painful, to do so. Some publicly argued problems are high1y emotional. The

problems must be treated carefully, or they will be difficult and painful if an elected official has to deal with

them. One such hot potato is taxes. Calling for higher taxes can mean defeat for a politician. And yet, if taxes

are not raised, some very popular government programs could be cut. And that also can make a politician very

unpopular. The questions must be dealt with carefully, the same way you would handle any other hot potato.

     [3]Another expression is not so hot. If you ask someone how she feels, she may answer "not so hot."

What she means is she does not feel well. Not so hot also is a way of saying you do not really like somethin.

You may tell a friend that the new play you saw last night is not so hot. That means ______.

     [4]A hot shot is a person, often a young person, who thinks he can do anything. He is very sure he can

succeed. But often he fails. The expression was born in the military forces. A hot shot was a soldier who fired

without aiming carefully. 

     [5]Hot is a word that is often used to talk about anger. A person who becornes angry easily is called a

hothead. An angry person's neck often becomes red. We say he is hot under the collar.

1. What is the text mainly about? (within 8 words)

    ____________________________________________________________________________________

2. Fill in the blank in Paragraph 3 with a proper sentence. (within 8 words)

    ____________________________________________________________________________________

3. Which sentence in the text is the closest in meaning to the following one? As you would deal with other 

    difficult problems, you must be careful with these ones.

    ____________________________________________________________________________________

4. List three situations where "hot" expressions can be used accordmg to the text. (within 30 words).

    ____________________________________________________________________________________

5. Translate the underlined sentence in Paragraph 2 into Chinese.

    ____________________________________________________________________________________

求得两变量X和Y的线性回归方程后，对回归系数作假设检验的目的是（）。

A.对样本截距作推断

B.对总体截距作推断

C.对样本斜率作推断

D.对总体斜率作推断

E.对决定系数作推断

救生艇在大风浪中施放镇流油应从哪一方向上施放（）。

A、上风方向

B、下风方向

C、任意方向

下列属于复议前置的情形包括( )。

A．公民与税务机关之间的纳税争议事项

B．当事人对税务机关的处罚决定、强制执行措施、保全措施不服

C．涉及自然资源的所有权、使用权的行政处罚、行政强制措施不服

D．对治安管理处罚决定不服