单选题The author mentions each of the following as an advantage of Chicago's location EXCEPT its ______.

单选题In the Gilded Age, people who possessed a calling card______

单选题He thinks that the ecosystems assessment will fare better if it is intended as "guidance only and is not in any way an ______ measure."

单选题Pronouns, prepositions, conjunctions and articles are all open class items. (清华2001研)

单选题By the first sentence of the passage the author means the US scientists______.

单选题Beijing Television-Station Transmitting Tower really looks magnificent at night when it's {{U}}illuminated{{/U}},

单选题Practically speaking, the artistic maturing of the cinema was the single-handed achievement of David W. Griffith (1875 - 1948). Before Griffith, photography in dramatic films consisted of little more than placing the actors before a stationary camera and showing them in full length as they would have appeared on stage. From the beginning of his career as a director, however, Griffith, because of his love of Victorian painting, employed composition. He conceived of the camera image as having a foreground and a rear ground, as well as the middle distance preferred by most directors. By 1910 he was using close-ups to reveal significant details of the scene or of the acting and extreme long shots to achieve a sense of spectacle and distance. His appreciation of the camera"s possibilities produced novel dramatic effects. By splitting an event into fragments and recording each from the most suitable camera position, he could significantly vary the emphasis from camera shot to camera shot. Griffith also achieved dramatic effects by means of creative editing. By juxtaposing images and varying the speed and rhythm of their presentation, he could control the dramatic intensity of the events as the story progressed. Despite the reluctance of his producers, who feared that the public would not be able to follow a plot that was made up of such juxtaposed images, Griffith persisted, and experimented as well with other elements of cinematic syntax that have become standard ever since. These included the flashback, permitting broad psychological and emotional exploration as well as narrative that was not chronological, and the crosscut between two parallel actions to heighten suspense and excitement. In thus exploiting fully the possibilities of editing, Griffith transposed devices of the Victorian novel to film and gave film mastery of time as well as space. Besides developing the cinema"s language, Griffith immensely broadened its range and treatment of subjects. His early output was remarkably eclectic: it included not only the standard comedies, melodramas, westerns, and thrillers, but also such novelties as adaptations from Browning and Tennyson, and treatments of social issues. As his successes mounted, his ambitions grew, and with them the whole of American cinema. When he remade Enoch Arden in 1911 , he insisted that a subject of such importance could not be treated in the then conventional length of one reel. Griffith"s introduction of the American-made multi-reel picture began an immense revolution. Two years later, Judith of Bethulia, an elaborate historicophilosophical spectacle, reached the unprecedented length of four reels, or one hour"s running time. From our contemporary viewpoint, the pretensions of this film may seem a trifle ludicrous, but at the time it provoked endless debate and discussion and gave a new intellectual respectability to the cinema.

单选题Several banks have joined the ______ in order to give better service to their customers.

单选题Why does the author mention the visible-light microscope in the first paragraph?

单选题Mrs．Wang is ______ secretary who is kind-hearted and helpful. And its ______ pleasure to work with her． A．the; me B．a; a C．a; the D．the; a

单选题The building is so well {{U}}constructed{{/U}} that it will survive even the strongest earthquake.

单选题{{B}}Text 3{{/B}} This line of inquiry did not begin until earlier this month--more than three months after the accident--because there were "too many emotions, too many egos," said retired Adm. Harold Gehman, chairman of the Columbia Accident Investigation Board. Testifying before the Senate Commerce Committee, Gehman said this part of his inquiry Was in its earliest stages, starting just 10 days ago. But Gehman said he already has concluded it is "inconceivable" that NASA would have been unable or unwilling to attempt a rescue for astronaut, s in orbit if senior shuttle managers and administrators had known there was fatal damage to Columbia's left wing. Gehman told reporters after the hearing that answers to these important questions could have enormous impact, since they could place in a different context NASA's decisions against more aggressively checking possible wing damage in the days before Columbia's fatal return. Investigators believe breakaway insulating foam damaged part of Columbia's wing Shortly after liftoff, allowing superheated air to penetrate the wing during its fiery re-entry on Feb. 1 and melt it from the inside. Among those decisions was the choice by NASA's senior shuttle managers and administrators to reject offers of satellite images of possible damage to Columbia's left wing before the accident. The subject dominated the early part of Wednesday's hearing. Gehman complained that managers and administrators "missed signals" when they rejected those offers for images, a pointedly harsh assessment of the space agency's inaction during the 16 day shuttle mission. "We will attempt to pin this issue down in our report, but there were a number of bureaucratic and administrative missed signals here," Gehman told senators. "We're not quite so happy with the process." The investigative board already had recommended that NASA push for better coordination between the space agency and military offices in charge of satellites and telescopes. The U. S. National Imagery and Mapping Agency in March agreed to regularly capture detailed satellite images of space shuttles in orbit. Still, Gehman said it was unclear whether even images from America's most sophisticated spy satellites might have detected on Columbia's wing any damage, which Gehman said could have been as small as two inches square. The precise capabilities of such satellites was a sensitive topic during the Senate hearing.

单选题The name of the dead man will not be released until his relatives have been ________.

单选题I prefer to live in the country rather than ______ in a city. A) to living B) living C) live D) lived

单选题I didn"t know what to do but then an idea suddently ______ to me.