综合安全技术目前，一般采用直径为( )mm的爆炸管或球形爆炸容器。 A．20 B．

下列化学用语中，正确的是 [ ]

A．2个硫酸根离子：2SO₄^2-

B．氧化钠：NaO

C．2H₂O的相对分子质量之和为20

D．+2价的镁元素：Mg²⁺

阅读理解。

     Aimlessness has hardly been typical of the postwar Japan whose productivity and social harmony are

the envy of the United States and Europe. But increasingly the Japanese are seeing a decline of the traditional

work-moral values. Ten years ago young people were hardworking and saw their jobs as their primary

reason for being, but now Japan has largely fulfilled its economic needs, and young people don't know

where they should go next.

     The coming of age of the postwar baby boom and an entry of women into the male-dominated job market

have limited the opportunities of teenagers who are already questioning the heavy personal sacrifices involved

in climbing Japans rigid social ladder to good schools and jobs. In a recent survey, it was found that only 24.5

percent of Japanese students were fully satisfied with school life, compared with 67.2 percent of students in

the United States. In addition, far more Japanese workers expressed dissatisfaction with their jobs than their

counterparts did in the ten other countries surveyed.

     While often praised by foreigners for its emphasis on the basics, Japanese education tends to stress test

taking and mechanical learning over creativity and self-expression." Those things that do not show up in the

 test scores, personality, ability, courage or humanity are completely ignored," says Toshiki Kaifu, chairman

of the ruling Liberal Democratic Party's education committee." Frustration against this kind of thing leads kids

to drop out and run wild." Last year Japan experienced 2,125 incidents of school violence, including 929

assaults on teachers. Amid the outcry, many conservative leaders are seeking a return to the prewar emphasis

on moral education. Last year Mitsuo Setoyama, who was then education minister, raised eyebrows when he

argued that liberal reforms introduced by the American occupation authorities after World WarⅡ had

weakened the"Japanese morality of respect for parents."

     But that may have more to do with Japanese life-styles." In Japan," says educator Yoko Muro,"it's never

a question of whether you enjoy your job and your life, but only how much you can endure." With economic

growth becoming centralization, fully 76 percent of Japans, 119 million citizens live in cities where community

and the extended family have been abandoned in favor of isolated, two generation households. Urban Japanese

have long endured lengthy commutes (travels to and from work) and crowded living conditions, but as the old

group and family values weaken, the discomfort is beginning to tell. In the past decade, the Japanese divorce

rate, while still well below that of the United States, has increased by more than 50 percent, and suicides have

increased by nearly one-quarter.

1. In the Westerners eyes, the postwar Japan was_____. 　

A. under aimless development

B. a positive example 　

C. a rival to the West

D. on the decline

2. According to the author, what may chiefly be responsible for the moral decline of Japanese society? 　

A. Women's participation in social activities is limited. 　

B. More workers are dissatisfied with their jobs. 　

C. Excessive emphasis has been placed on the basics. 　

D. The life-style has been influenced by Western values.

3. Which of the following is true according to the author?

A. Japanese education is praised for helping the young climb the social ladder. 　

B. Japanese education is characterized by mechanical learning as well as creativity.　　　　　

C. More stress should be placed on the cultivation of creativity. 　

D. Dropping out leads to frustration against test taking.

4. The change in Japanese life-style is revealed in the fact that ______. 　

A. the young are less tolerant of discomforts 　

B. the divorce rate in Japan exceeds that in the U.S. 　

C. the Japanese endure more than ever before 　

D. the Japanese appreciate their present life 　

某债券每年支付一次息票利息（息票率为15%），期限为3年，按照平价发行（票面价值为100美元）。如果将其年度收益率定为23%，则该债券的交易价格应为多少（）

A、83.9美元

B、89.2美元

C、105.6美元

甲公司2011年4月1日销售产品一批给乙公司，价税合计为585000元，同日乙公司交来一张面值为585000元、期限为6个月的商业承兑无息票据。甲公司2011年7月1日将应收票据向银行申请贴现，贴现率为6%。另外发生手续费120元。假定本贴现业务符合金融资产转移准则规定的金融资产终止确认条件。假定每月按30天计算。甲公司在贴现时应确认的财务费用为（）元。

A.8895 

B.8775 

C.120 

D.8655

武术运动按照功能分类，可分为：（）、健身武术、学校武术、实用武术。