在平面直角坐标系xOy中,将点A(2,4)向右平移4个单位长度,再向下平移2个单

题型:解答题

问题:

在平面直角坐标系xOy中,将点A(2,4)向右平移4个单位长度,再向下平移2个单位长度得到点B。

(1)写出点B的坐标;

(2)求出△OAB的面积。

考点:平面直角坐标系有序数对用坐标表示位置用坐标表示平移
题型:解答题
设f(x)是R上的函数,且f(-x)=-f(x),当x∈[0,+∞)时,f(x)=x(1+
3x
),那么当x∈(-∞,0)时,f(x)=______.
题型:解答题

重度肝大不见于 ()

A.肝癌

B.早期肝硬化

C.血吸虫病

D.原发性胆汁性肝硬化

E.多囊肝

题型:解答题

阅读下面短文并回答问题,然后将答案写到答题卡相应的位置上(请注意问题后的词数要求)。

(1) Everybody has to buy or sell things sometimes.Even students who are usually not very rich, have

to learn something about making purchases intelligently.As a student, you may find, for example, that

you need to buy a walkman or winter clothing.You may want to buy a television or a used car.Of course,

you want to get good value for your money.If you are considering a major purchase, or any purchase you

should remember several important things.

(2) Study first, and then decide what to buy.You can get enough information just by reading books

and advertisements.

(3) Remember that a high quality product will probably last longer and work better.Of course, for a

superior product you ______________.An inferior product may not give you the same quality,

but the price could be low.A poor quality product could be expensive and a valuable one could be on sale

at a greatly reduced price.

(4) Don't worry.Take your time.After you decide what product you want to buy, go to many

different stores.If you cannot find the product you want, you try to order it directly from the factory or

ask the store to order it for you.

(5) Look for a good deal.If you wait, you may probably find that your product will go on sale and

you may be able to save 10,20, or even 50 percent of the original price.

(6) Finally, before you buy, make sure that that product is guaranteed.If you find the lowest possible

price, you will generally be happy with your purchase and also keep more money in the bank.

小题1:What is the main idea of the passage? (no more than 8 words)

小题2:What should you care more while shopping? (no more than 5 words)

小题3:Fill in the blank in Paragraph 3 with proper words.(no more than 5 words)

Of course, for a superior product you

小题4:How can you get good value for your money? (list at least two things) (no more than 20 words)

小题5:What does‘the underlined’word“one"’refer to in paragraph 3?

题型:解答题

团结互助 对于 ( ) 相当于 ( ) 对于骄奢淫逸

A.损人利己 艰苦奋斗
B.大公无私好逸恶劳
C.见义勇为 愚昧无知
D.斤斤计较风华正茂

题型:解答题

男性,32岁,饱食后突感右上腹部剧痛,迅速转移到右下腹和下腹部,伴恶心,呕吐不能减轻腹痛。发病6小时来院急诊,体检:痛苦貌,血压12/8kPa,脉搏120次/分,全腹肌紧张,压痛,反跳痛,以上腹和右上腹部为著,肠鸣音消失,肝浊音界存在,白细胞16×109/L,中性0.9。

最可能的诊断是()

 

A.肠扭转

B.十二指肠溃疡急性穿孔

C.急性胆囊炎伴穿孔

D.急性胰腺炎

E.阑尾炎穿孔致腹膜炎

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