2007年爆发于美国的次贷危机演变成金融危机并迅速席卷全球。为应对金融危机，我国

当PC机I/O 扩充槽送出检查出错信号时，一般向CPU发出( )请求处理。

A．可屏幕中断(INTR)信号
B．不可屏蔽中断(MNI)信号
C．软件中断
D．停机信号

季节性商品展销可以通过各种各样的（）商品吸引顾客，满足顾客需求，为顾客提供服务。

A、适时、适量

B、丰富商品

C、应季、应节

D、质好、量多

某零售企业想通过利益相关者的反馈检查该企业今年下半年的售后服务水平，那么该零售企业一般不会向（）寻求反馈。

A.顾客

B.供应商

C.生产线管理人员

D.高层领导人员

三角形接线中线电压与相电压的关系？

Vienna was one of the music centers of Europe during the classical period, and Haydn, Mozart, and Beethoven were all active there. As the (1) of the Holy Roman Empire (which included parts of present-day Austria, Germany, Italy, Hungary, Czech and Slovakia), it was a (2) cultural and commercial center (3) a cosmopolitan character. Its population of almost 250,000 (in 1800) made Vienna the fourth largest city in Europe. All three (4) masters were born elsewhere, but they were (5) to Vienna to study and to seek (6) . In Vienna, Haydn and Mozart became close friends and influenced each other’s musical (7) . Beethoven traveled to Vienna at sixteen to play for Mozart; at twenty-two, he returned to study with Haydn.

Aristocrats from all over the Empire spent the winter in Vienna, sometimes bringing their private (8) . Music was an important part of court life, and a good orchestra was a (9) of prestige. Many of the nobility were excellent musicians.

Much music was heard in (10) concerts where aristocrats and wealthy commoners played (11) professional musicians. Mozart and Beethoven often earned money by performing in these intimate concerts. The nobility (12) hired servants who could (13) as musicians. An advertisement in the Vienna Gazette of 1789 (14) : " Wanted, for a house of the gentry, a manservant who knows how to play the violin well. "

In Vienna there was also (15) music, light and popular in (16) . Small street bands of wind and string players played at garden parties or under the windows of people (17) to throw (18) money. Haydn and Mozart wrote many outdoor entertainment (19) , (20) they called divertimentos or serenades. Vienna’s great love of music and its enthusiastic demand for new works made it the chosen city of Haydn, Mozart and Beethoven.

7（）

A.style

B.genre

C.theme

D.emotion