[填空题]A gram of fat has more calories than a gram of protein, so we need to eat more fat.

[填空题]A gram of fat has more calories than a gram of protein, so we need to eat more fat.

[单项选择]More than a year has passed since the space shuttle Columbia broke into pieces over central Texas. This past January President Bush announced a long-term program of space exploration that would return human beings to the Moon, and thereafter send them to Mars and beyond. As this magazine (Natural History) goes to press, the twin Mars Exploration Rovers, Spirit and Opportunity, are wowing the scientists and engineers at the rovers’ birthplace--NASA’s Jet Propulsion Laboratory (JPL)--with their skills as robotic field geologists. JPL’s official rover Web site is being stampeded by visitors. The confluence of these and other events resurrects a perennial debate: with two shuttle failures out of 112 missions, and the astronomical expense of the manned space program, can sending people into space be justified, or should robots do the job alone
Modern societies have been sending robots into space since 1957, and people since 1961. Fact is, it’s vastly cheaper to send robots: in most cas
A. A．1) most probably means ______ . hacked severelyB. clicked frequentlyC. closed foreverD. neglected purposely

[判断题]Whole milk contains more fat globules than protein clumps.

[填空题]The book has more than one author.

[填空题]Who has owned more than 50 domain names
A. A．George W. Bush
B．Kelsey Grammar
C．Bonita Card.

[填空题]For more than 10 years there has been a bigger rise in car crime than in most other types of crime. An average of more than two cars a minute are broken into, vandalized (破坏) or stolen in the UK. Car crime accounts for almost a third of all reported offences with no signs that the trend is slowing down.
Although there are highly professional criminals involved in car theft, almost 90 percent of car crime is committed by the opportunist. Amateur thieves are aided by our carelessness. When the Automobile Association (AA) engineers surveyed one town centre car park last year, 10 percent of cars checked were unlocked, a figure backed up by a Home Office national survey that found 12 percent of drivers sometimes left their cars unlocked.
The vehicles are sitting in petrol stations while drivers pay for their fuel. The AA has discovered that cars are left unattended for an average of three minutes and sometimes much longer as drivers buy drinks, cigarettes and other consumer it