What scientists Johan Feenstra and Rob Hayes did was that______.
A．they made an electronic newspaper
B．they created a piece of videoscreen-like paper
C．they made a tiny piece of primitive e-paper
D．they invented the electrowetting technology

未分类题It can be inferred from Paragraph 3 that______.A．alcohol can lower the risk of plaque in arteriesB．some components of wine is bad for healthC．chocolate is good for healthD．alcohol can be used as medicine

未分类题Which of the following is TRUE of the targeted cancer therapy?A．It has been booming since its first occurrence fifty years ago.B．Its new development relies on the expansion of treatment target.C．It has prevented tumors to metastasize or spread through the body.D．It is a vaccine-like therapy by training the patient's immune systems.

未分类题The phrase 'zero in'(Line 5, Paragraph 4)most probably means______.A．take aimB．return to zeroC．pass throughD．get involved

未分类题The first sentence in Paragraph 1 is used by American school children because______.A．it represents typical American cultureB．it represents nine planets in the solar systemC．it is often used in teaching astronomyD．it is a good example of mnemonics

未分类题Where culture is concerned, in Madrid variety reigns. With modern art centers【B1】______from discarded factories and traditional Spanish musical theater【B2】______modern themes, there are seemingly endless ways to dive into the arts in Madrid. One of those old industrial spaces is Matadero Madrid, 【B3】______a vast slaughterhouse and now a livery multidisciplinary arts【B4】______with design, technology and art exhibitions, as well as experimental theater. Then theres the Filmoteca Espanola in the Cines Dore, in an easy-to-miss【B5】______next to a fish market. With about 10【B6】______film series each month—retrospectives of beloved directors, a series of documentaries about gypsies—【B7】______a bookstore and restaurant, all【B8】______in a gorgeous Art Deco theater, its a great【B9】______for a rainy autumn afternoon. One flight above that same fish market, the Mercado Anton Martin, youll【B10】______feet stomping in the hallowed halls of Amor de Dios, the famed flamenco school【B11】______which legends like Antonio Gades, Sara Baras and Joaquin Cortes have passed as either students or teachers. Whether youre thinking of【B12】______or just sneaking up to【B13】______on a class in action, its the citys most【B14】______scene for flamenco. 【B15】______the cutting-edge crowd out the classics, there are always operettas to be heard at the historic Teatro de la Zarzuela, named for a Spanish genre that【B16】______means huge productions with lavish【B17】______and sets, exaggerated comic gestures and【B18】______happy endings. The new【B19】______begins Oct. 17 with the classic ' Soto del Parral' ,【B20】______pokes fun at provincial ways, and will close in June with the world premiere of ' YoDali', a contemporary opera about the life of Salvador Dali.【B1】A．derivingB．inheritingC．emergingD．accepting