与外径千分尺相比，杠杆千分尺的尺架部分刚性不好。( )

绞窄性肠梗阻的临床表现哪一项是错误的（）

A.有腹膜刺激征

B.腹痛持续严重无缓解

C.呕吐血性或棕褐色的液体

D.肠鸣音极微弱或消失

E.腹部症状轻，病情相对平稳

规定了烟花爆(炮)竹产品分类、安全与质量要求、试验方法和验收规则，还规定了产品的标志、包装、运输和储存要求的安全技术标准是______。

A．《烟花爆竹劳动安全技术规范》
B．《烟花爆竹计数抽样检查规则》
C．《烟花爆竹安全与质量》
D．《民用爆破器材工厂设计安全规范》

如何理解“发展才是硬道理”

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.

9（）

A.symbol

B.sign

C.sight

D.signal

货物的运到期限满期后经过（），或鲜活货物（）仍不能在到站交付货物时，车站应于当日编制货运记录交给收货人。