用8.5N的水平拉力,使质量为10kg的物体沿水平方向匀速移动10m,则拉力做的

题型:填空题

问题:

用8.5N的水平拉力,使质量为10kg的物体沿水平方向匀速移动10m,则拉力做的功是       J,重力做的功是       J.

考点:功的概念
题型:填空题

睡中露睛多属( )

A.心神失养
B.肝旺扰神
C.脾虚气弱
D.胃气不和
E.肺气虚弱

题型:填空题

Mr. Reed made up his mind to devote all he had to     some schools for poor children.

A.set up

B.setting up

C.have set up

D.has set up

题型:填空题

正常成年人右下肺动脉于不应宽于()

A.1.0cm

B.1.5cm

C.2.0cm

D.2.5cm

E.3.0cm

题型:填空题


The United States counts its population every ten years, and each census reveals that the racial and ethnic mix is changing dramatically, so by the year 2050, the "average" American will not be descended from (1) , but the majority of U. S. residents will trace (2) ancestry to Africa, Asia, the Hispanic world, the Pacific Islands, or the Middle East. Once the United States was a microcosm of European nationalities, (3) the United States is a microcosm of the world. The United States is (4) considered a "melting pot" society by many of its residents. (5) , many people prefer the term "salad bowl." They use this (6) to describe American society. American society will soon be (7) nonwhite. "Melting pot" implies that the different ethnic groups blend together (8) one homogeneous (9) , "salad bowl" (10) that nationalities, like the ingredients in a mixed green salad, retain their cultural (11) . Earlier generations of (12) believed they had to learn English quickly not only to survive but also for (13) .
Now, many immigrant groups do not (14) the same need. Because there are many places in America (15) you can work, shop, get medical care, marry, divorce and die without knowing English. (16) , Chinatown in San Francisco and New York. Also, Los Angeles has many Vietnamese immigrants and immigrants from Mexico. (17) , many immigrant groups want their children to know their (18) culture. Many Hispanics, for instance, want their children to learn (19) English and Spanish and study the Spanish language in school. They are fighting for the (20) to bilingual education in many communities. In many communities they are in the majority.

题型:填空题

投资银行的资金来源主要是( )。

A.依靠发行自己的股票和债券来筹集
B.长期证券投资
C.财政拨款
D.发行金融债

更多题库