[单项选择]两个数之差为13，之和为41，请问这两个数的平方差是多少( )
A. 533
B. -533
C. -533
D. ±473

[单项选择]

W: What do you feel like doing this weekend, John
M: This weekend Well, how about going to the new Italian restaurant in Chauncey
W: Yes, good idea. I like Italian food very much.
M: Me, too.

What are the speakers talking about（　）.
A. How to cook Italian food for the weekend.
B. How to manage their Italian restaurant.
C. How to find the new Italian restaurant.
D. How to spend the coming weekend.

[简答题]测试滤失量试验时，是以什么为单位记录滤液的体积并作为API滤失量的？

[单选题]空压机润滑油的温度应不超过( ).
A.A、45℃
B.B、55℃
C.C、65℃
D.D、75℃

[单选题]下列哪种药物可抑制肾上腺皮质功能
A.普鲁泊福（异丙酚）
B.氧化亚氮
C.硫喷妥钠
D.依托咪酯
E.安氟醚

[不定项选择题]共用题干 第二篇

The Development of Ballet


Ballet is a dance form that has a long history.The fact that it survives to this day shows that it has adjus-
ted as times have changed.
Ballet began in the royal courts during the Renaissance?At that time it became common for kings and

queens,as well as other nobility,to participate in pageants that included music,poetry,and dance.As
these entertainments moved from the Italian courts to the French ones,court ladies began participating in
them.Though their long dresses prevented much movement,they were able to perform elaborate walking pat-
terns.It was not until the 1600s that women dancers shortened their skirts,changed to flat shoes,and began
doing some of the leaps and turns performed by men.
It was also in the 1600s that professional ballet began.King Louis XIV of France,himself a devoted
dancer,founded the Royal Academy of Dance.The five basic feet positions from which all ballet steps begin
were finalized.In the late 1700s another important change occurred.Ballet began to tell a story on its own.It
was no longer simply dance to be performed between acts of plays.Elaborate wigs and costumes were elimina-
ted.By the early 1800s dancers learned to rise on their toes to make it appear that they were floating.
Classical ballet as we know it today was influenced primarily by Russian dancing. The Russians re-
mained interested in ballet when it declined in other European countries in the mid-1800s.One of the most
influential figures of the early 20th century was Sergei Diaghilev.His dance company,the Ballets Russes,
brought a new energy and excitement to ballet.One of his chief assistants,George Balanchine,went on to
found the New York City Ballet in 1948 and to influence new generations of dancers. We can conclude from this passage that ballet___________.
A.will continue to change
B.is a dying art
C.is currently performed only in Russia
D.is often performed by dancers wi th little training

[单项选择]{{B}}Text 2{{/B}}