单项选择题

Experts at Marshall Space Flight Center in Huntsville, Alabama, have been working for years on a successor to the shuttle. The project, known as the Space Launch Initiative, was divided into two parts-one focusing on a further launch vehicle, the other on a space station orbiter. The orbiter is expected to be ready sooner.
The program’s manager say NASA officials have told them not to alter Space Launch Initiative in light of the Columbia disaster.
US President George W. Bush asked Congress for about US $1 billion for Space Launch Initiative in 2004, funds that would be almost equally split between the Orbital Space Plane and Next Generation Launch Technology.
How much fund would the Orbital Space Plane probably get

A. US $1 billion
B. US $ 2 billion
C. US $ 50 million
D. Not mentione
<上一题 目录 下一题>
热门 试题

单项选择题
From the beginning, water has furnished man with a source of food and a highway to travel upon. The first civilizations arose where water was a dominant element in the environment, a challenge to man’s ingenuity. The Egyptians invented the 365-day calendar in response to the Nile’s annual flooding. The Babylonians, who were among the most famous law. makers in ancient times, invented laws regulating water usage. Water inspired the Chinese to build a 1,000-mile canal, a complex system, which, after nearly 2,500 years, remains still practically in use and still commands the astonishment of engineers. But the ancients never found complete solutions to their water problems. The Yellow River is also known as China’s Sorrow ; it is so unpredictable and dangerous that in a single flood it has caused a million deaths. Hoods slowed the great civilization of the Indus River Valley, and inadequate drainage ruined much of its land. Today water dominates man as it always has done. Its presence continues to govern the location of his homes and cities; its violent variability call kill man or his herds or his crops; its routes links him to his fellows; its immense value may add to already dangerous political conflicts. There are many examples of this in our own time. The Indus River is most probably located in
A. China.
B. Egypt.
C. Babylon.
D. Indi
单项选择题
Twitter, the micro-blogging service used by tens of millions of people, went off-line last month. It blamed the trouble on a malicious programmer in Russia who was trying to shut down the account of a user in neighboring Georgi
a. It is astonishing the local actions of a small number of programmers can bring an entire Internet service to its knees, but that appears to have been the case.
What seems to be a big problem for Internet servicesA. A few programmers can break down an entire Internet service.B. There are too many malicious programmers attacking the Internet.C. There are so many users that the Internet cannot burden the load.D. The competition is so fierce that many websites have gone bankrupt.
相关试题