个体服装销售只要高出进价的20%便可盈利,但老板们常以高出进价的50%~100%

题型:选择题

问题:

个体服装销售只要高出进价的20%便可盈利,但老板们常以高出进价的50%~100%标价,假如你想买一件标价为300元的衬衫,能成交,你的还价为(  )
A.180元B.100元C.160元D.170元
考点:一元一次不等式组的应用
题型:选择题

Louis Armp had two famous nicknames. Some people called him Bagamo. They said his mouth looked like a large bag. Musicians often called him Pops, as a sign of respect for his influence on the world of music.

Born in 1901 in New Orleans, he grew up poor, but lived among great musicians. Jazz had been invented in the city a few years before his birth. Armp often said, "Jazz and I grew up together. "

Armp showed a great talent for music when he was taught to play the comet at a boy’s home. In his late teens, Armp began to live the life of a musician, lie played in parades, clubs, and on the steamboats that traveled on the Mississippi River. At that time, New Orleans was famous for the new music of jazz and was home to many great musicians. Armp learned from the older musicians and soon became respected as their equal.

In 1922 he went to Chicago. There, the tale of Louis Armp began. From then until the end of his life, Armp was celebrated and loved wherever he went. Armp had no equal when it came to playing the American popular song.

His cornet playing had a deep humanity and warmth that caused many listeners to say, "Listening to Pops just makes you feel good all over. " He was the father of the jazz style and also one of the best known and most admired people in the world. His death, on July 6th 1971,was headline news around the world.

The third paragraph is developed().

A.by space

B.by examples

C.by time

D.by comparison

题型:选择题

在测验理论中,效度被定义为真分数方差占观测分数总方差的百分比。 ( )

题型:选择题

振动类手法应该包括()

A.振法、搓法、拍捶法等

B.拍捶法、击法等

C.抖法、屈伸法、引伸法等

D.擦法、法、搓法等

E.振法、搓法等

题型:选择题

距离保护第Ⅰ段的动作时限为保护装置()。

题型:选择题

LD 80—1995《噪声作业分级》中,Ⅰ级表示( )。

A.安全作业
B.轻度危害
C.高度危害
D.极度危害

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