问题 多选题

一个容器最多能装下0.5kg的水,若用此容器装下列液体,能装下0.5kg的(  )(已知ρ硫酸>ρ盐水>ρ>ρ酒精>ρ汽油

A.硫酸

B.盐水

C.汽油

D.酒精

答案

∵ρ=

m
v

∴V=

m 
ρ
=
0.5kg
ρ

A、0.5kg硫酸的体积:

V硫酸=

0.5kg
ρ硫酸

∵ρ硫酸>ρ

∴V硫酸<V

该瓶子能装下0.5kg的硫酸;

B、0.5kg盐水的体积:

V盐水=

0.5kg
ρ盐水

∵ρ盐水>ρ

∴V盐水<V

该瓶子能装下0.5kg的盐水;

C、0.5kg汽油的体积:

V汽油=

0.5kg
ρ汽油

∵ρ汽油<ρ

∴V汽油>V

该瓶子不能装下0.5kg的汽油;

D、0.5kg酒精的体积:

V酒精=

0.5kg
ρ酒精

∵ρ酒精<ρ

∴V酒精>V

该瓶子不能装下0.5kg的酒精;

故选AB.

判断题
完形填空

阅读下面短文,并根据短文后面的要求答题(请注意答题后的字数要求)

[1] If you are applying for an American higher education, you probably dream of getting into an Ivy League (常青藤联盟) university.The eight schools with the best reputations attract top students from the United States and many other countries. However, on average, the Ivy League schools accept less than 15 percent of applicants.And with the applicants growing in size year on year, it is becoming more and more difficult _________.

[2] So how can you give yourself the best chance of admission?

[3]Having a high school grade point average (GPA) in the top 10 percent of your class and being ranked among the top few students dramatically betters your chances.But although GPA and SAT scores are important, they only tell admission deans(主任)part of the story.

[4] The whole admissions process will single out (挑选出) from a large pool of academically strong applicants the unique individuals.They stand out because they have shown in their interviews a range of virtues (优点) expected of these universities.Take Harvard for example.Although there is no guarantee of admission, the school judges applicants based on 15 additional criteria.

[5] Intellectual curiosity (求知欲) comes first tor almost all admission deans.Schools look to such students because they believe their peers find them stimulating(激励人的)inside and outside the classroom.

[6] Leadership also weighs heavily.The school would rather see an applicant who takes on additional responsibility in one or two areas where he or she is good at, rather than one who is merely "very good" academically.This can mean the class presidency( * * 职务), leading the cheerleading team or being the officer of a student union.

[7] Whether a person has personal warmth and cares about others counts a lot with the admission deans.Writing an essay on a personal experience, like a summer spent raising funds for the earthquake victims or teaching in a local school, can show that a person has qualities in addition to academic experience.

小题1:What is the purpose of the passage? (no more than 15 words)

                                                                               

小题2:Which sentence in the passage can be replaced by the following one?

The universities pay attention to the students with this virtue in that they can inspire their fellow students at school.

                                                                               

                                                                               

小题3:Fill in the blank in the first paragraph with proper words or phrases to complete the sentence. (no more than 5 words)

                                                                               

小题4:Based on the passage, list three additional criteria for admission besides academic performance.(no more than 10 words)

①_________________ ②_______________ ③____________________

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