更多"The explosion of the first atomic d"的相关试题:
[单项选择]Accidents caused by car doors being opened into the path of oncoming vehicles or cyclists are common in cities. But these incidents could become a thing of the past, if doors that react to potential impacts catch on.
……
The current prototype looks like a normal ear door, but an extra metal bar runs through its centre and connects to the ear’s flame between the hinges. In normal mode, the bar moves freely and doesn’t affect the door’s movement.
However, if sensors detect a nearby obstacle at the same time as an accelerometer (加速度讲; 加速仪) detects an attempt to open the door, the door’s swing is restricted by a linear motor attached to the bar.
The design of the intelligent door is designed in such a way that the door becomes hard to open when
A. there is an obstacle nearby.
B. there is something wrong with the accelerometer.
C. there is something wrong with the sensors.
D. there is an accelerometer in the car.
[单项选择]
The Brazilian government has opened the first in a new generation of federal high security prisons which it hopes will help stop gang leaders continuing to operate from behind bars. It’s part of a long term program but follows an outbreak of violence in Sao Paulo which was ordered by jailed gang commanders and resulted in at least 120 deaths.
Inmates will be held in individual cells under video surveillance. Guards will wear clip microphones so their conversations with prisoners can be recorded. And X-ray machines will be used to spot guns, explosives and drugs. Brazilian officials will also hope the new prisons help them tackle 2 other problems with the country’s jails: riots often between rival gangs and escape bids which frequently get help from guards. But there is one potential problem: the Sao Paulo violence was sparked by dispute over the detention conditions of PCC leaders. It’s unlikely that any gang commander would go quietly to the federal gov
A. recording the conversations between guards and prisoners
B. holding prisoners in separate cells
C. storing enough guns and explosives
D. videotaping the actions of the prisoners
[填空题]
It’s no accident that McDonald’s opened its first
drive-through in Dongguan last December. Local newspapers have{{U}} (47)
{{/U}} that one in three Dongguan households owns an automobile, making it
one of the highest rates in China.
The new McDonald’s, which
also has a sit-down restaurant, {{U}} (48) {{/U}} the corner of a
suburban street of salmon-pink apartments and low-rise malls, and there’s not an
iron bicycle in sight.
In short, it’s a/an {{U}} (49)
{{/U}} locale(场所) for the all-American meal in your ear. McDonald’s calls it
a natural {{U}} (50) {{/U}} to the "fast-paced lives" of many Chinese who
they hope will {{U}} (51) {{/U}} this "next generation" of restaurants. A
second drive-through has opened this year in Shanghai, and more are
{{U}} (52) {{/U}}.
So far, the signs are {{U}} (53)
{{/U}}. Around 400 cars a day are using the drive-through in Dongguan, a
McDonald’s manager tells me, and the {{U}} (54) {{/U}}
