下列哪项为加热固化型基托树脂充填型盒的最佳时期A．粘丝期 B．稀糊期 C．面团期 D

扫描仪扫出来的画面颜色模糊，原因可能是()。

A.扫描仪的平板玻璃脏了

B.扫描速度太高

C.扫描仪驱动程序存在问题

D.扫描仪温度过低

下列哪项不属于青春期自我意识的主要矛盾（）

A.本我与超我

B.理想与现实

C.独立与依赖

D.交往与封闭

E.学习与恋爱

在产品生命周期的______，促销的内容是适当的营业推广，并辅之广告与降价。

A．导入期

B．成长期

C．成熟期

D．衰退期

行政合理原则的宗旨在于解决行政机关( )的合理性问题。

A．行 * * 力
B．行政行为
C．行 * * 限
D．行政决定

What might driving on an automated highway be like The answer depends on what kind of system is ultimately adopted. Two distinct types are on the drawing board. The first is a special-purpose lane system, in which certain lanes are reserved for automated vehicles. The second is a mixed traffic system: fully automated vehicles would share the road with partially automated or manual driven cars. A special-purpose 1ane system would require more extensive physical modifications to existing highways, but it promises the greatest gains in freeway (高速公路) capacity.

Under either scheme, the driver would specify the desired destination, furnishing this information to a computer in the car at the beginning of the trip or perhaps just before reaching the automated highway. If a mixed traffic system way was in place, automated driving could begin whenever the driver was on suitably equipped roads. If special-purpose lanes were available, the car could enter them and join existing traffic in two different ways. One method would use a special onramp (入口引道). As the driver approached the point of entry for the highway, devices installed on the roadside would electronically check the vehicle to determine its destination and to ascertain that it had the proper automation equipment in good working order. Assuming it passed such tests, the driver would then be guided through a gate and toward an automated lane. In this case, the transition from manual to automated control would take place on the entrance ramp. An alternative technique could employ conventional lanes, which would be shared by automated and regular vehicles. The driver would steer onto the highway and move in normal fashion to a "transition" lane. The vehicle would then shift under computer control onto a lane reserved for automated traffic. [The limitation of these lanes to automated traffic would, presumably, be well respected, because all trespassers (非法进入者) could be swiftly identified by authorities. ]

Either approach to joining a lane of automated traffic would harmonize the movement of newly entering vehicles with those already traveling. Automatic control here should allow for smooth merging without the usual uncertainties and potential for accidents. And once a vehicle had settled into automated travel, the driver would be free to release the wheel, open the morning paper or just relax.

Which of the following is true about driving on an automated highway().

A. Vehicles traveling on it are assigned different lanes according to their destinations.

B. A car can join existing traffic any time in a mixed lane system.

C. The driver should inform his car computer of his destination before driving onto it.

D. The driver should share the automated lane with those of regular vehicles.