一般的科学论文由三部分构成，即绪论、本论和_____。

变速跑是队员在跑动中突然改变方向的一种方法。

下列哪一项不符合胆管结石的CT表现（）

A.胆管内环行或圆形致密影 

B.中心密度高，周围低密度形成“靶征” 

C.梗阻上方胆总管扩张 

D.增强扫描见胆总管强化影 

E.可伴有肝内胆管和胆囊结石。

阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项，并在答题卡上将该项涂黑。

A

What’s On?

Electric Underground

7.30pm－1.00am   Free at the Cyclops Theatre

Do you know who’s playing in your area? We’re bringing you an evening of live rock and pop music from the best local bands. Are you interested in becoming a musician and getting a recording contract(合同)? If so, come early to the talk at 7.30pm by Jules Skye, a successful record producer. He’s going to talk about how you can find the right person to produce your music.

Gee Whizz

8.30pm-10.30pm   Comedy at Kaleidoscope

Come and see Gee Whizz perform. He’s the funniest stand-up comedian on the comedy scene. This joyful show will please everyone, from the youngest to the oldest. Gee Whizz really knows how to make you laugh! Our bar is open from 7.00pm for drinks and snacks(快餐).

Simon’s Workshop

5.00pm-7.30pm    Wednesdays at Victoria Stage

This is a good chance for anyone who wants to learn how to do comedy. The workshop looks at every kind of comedy, and practices many different ways of making people laugh. Simon is a comedian and actor who has 10 years’ experience of teaching comedy. His workshops are exciting and fun. An evening with Simon will give you the confidence to be funny.

Charlotte Stone

8.00pm-11.00pm     Pizza World

Fine food with beautiful jazz music; this is a great evening out. Charlotte Stone will perform songs from her new best-selling CD, with James Pickering on the piano. The menu is Italian, with excellent meat and fresh fish, pizzas and pasta(面食). Book early to get a table. Our bar is open all day, and serves cocktails, coffee, beer, and white wine.

What do we know about Simon’s Workshop?（）

A. It requires membership status.

B. It lasts three hours each time.

C. It is run by a comedy club.

D. It is held every Wednesday.

发包人供应的材料设备因承包人的原因发生损坏丢失，应( )。

A．由发包人重新采购

B．由承包人负责赔偿

C．由工程师确定赔偿责任

D．由承包人和发包人共同承担

中度甲亢基础代谢率为（）

A.+10%～+20%

B.+20%～+30%

C.+10%～+30%

D.+30%～+60%

E.>+60%