甲房地产开发企业通过出让方式取得一块商业用地使用权，拟建造商业楼，并签订了建设用地使用权出让合同。根据上述资料，回答下列问题：

土地使用权出让合同（ ）。

A:可以随时变更 B:土地使用权转让后无效 C:是领取土地使用证明必不可少的凭证 D:是出让双方权利与义务的契约

（医疗器械产品使用注意事项）

无菌方式包装可以直接使用的是

A:针具 B:创可贴 C:避孕套 D:医用纱布,医用棉花 E:一次性使用无菌医疗器械

（医疗器械产品使用注意事项）

使用前应进行灭菌或消毒处理的是

A:针具 B:创可贴 C:避孕套 D:医用纱布,医用棉花 E:一次性使用无菌医疗器械

（医疗器械产品使用注意事项）

一旦启封就应立即使用，用后也必须销毁以防继续留用的是

A:针具 B:创可贴 C:避孕套 D:医用纱布,医用棉花 E:一次性使用无菌医疗器械

Listening Device Provides Landslide Early Warning

A device that provides early warning of a landslide by monitoring vibrations in soil is being tested by UK researchers. The device could save thousands of lives each year by warning when an area should be evacuated, the scientists say. Such natural disasters are common in countries that experience sudden, heavy rainfall, and can also be triggered by earthquakes and even water erosion.

Landslides start when a new particles of soil or rock within a slope start to move, but the early stages can be hard to spot. Following this initial movement, “slopes can become unstable in a matter of hours or minutes.,” says Nell Dixon at Loughborough University¹, UK. He says a warning system that monitors this movement “might be enough to evacuate a block of flats or clear a road, and save lives .”

The most common way to monitor a slope for signs of an imminent landslide is to watch for changes in its shape. Surveyors can do this by measuring a site directly, or sensors sunk into horeholes or fixed above ground can be used to monitor the shape of a slope. Slopes can, howcver, change shape without triggering a landslide, so either method is prone to causing false alarms. Now Dixon’s team has developed a device that listens for the vibrations caused when particles begin moving within a slope.

The device taktes the form of a steel pipe dropped into a borehole in a slope. The horeholeis filled in with gravel around the pipe to help transmit high-frequency vibrations generated by particles within the slope. These vibrations pass up the tube and are picked up by a sensor on the surface. Software analyses the vibration signal to determine whether a landslide may be imminent.

The device is currently being tested in a 6-metre-tall artificial clay embankment in Newcastle2, UK. Early results suggest it should provide fewer false positives than existing systems. Once it has been carefully and thoroughly tested, the device could be used to create a complete early-warning system for dangerous slopes.

“Locations with a significant risk of landslides could definitely benefit from a machine like this,” says Adam Poulter, an expert at the British Red Cross. “As long as it doesn’t cost too much.” But, Poulter adds that an early-warning system may not be enough on its own. “You need to have the human communication,” he says. “Making systems that get warnings to those who need them can be difficult.”

词汇:  

landslide/ ˈlændslaɪd / n. 山崩地滑；塌方

imminent /ɪmɪnənt /  adj. 即将发生的;迫切的，

vibration / vaɪˈbreɪʃn / n. 振动 

sensor / ˈsensə(r) / n. 传感器

evacuate / ɪ"vækjʊeɪt / vi. 疏散，撤走 

borehole / ˈbɔ:həul / n. 钻孔，井眼

rainfall / ˈreɪnfɔ:l / n. 降雨，降雨量 

gravel / ˈgrævl / n.  砾，砾石，砂砾

erosion / ɪ"rəʊʒn / n. 腐蚀，侵蚀 

embankment / ɪmˈbæŋkmənt /n. 堤岸

注释：

1.Loughbourough University：拉夫堡大学。该大学地处英格兰东部的拉夫堡市，始建于1909年的拉夫堡学院，1966年获得皇家特许正式成为综合性大学。
2.Newcastle：纽卡斯尔。英格兰东北部的一个自治区，位于利兹（Leeds）以北（the Tyne River）河畔。

Why do researchers develop a new device to monitor signs of landsides?

A:Because the new device can measure the site directly. B:Because the new device can be sunk into boreholes or fixed above ground. C:Because the common methods can cause false alarms. D:Because the common methods are useless.

在Cisco路由器上进行SNMP设置时，如果团体名为manage，访问权限为只读，那么正确的配置语句是______。

A:snmp-server community public ro B:snmp-server community public nv C:snmp-server community manage ro D:snmp-server community manage rw

某用户刚刚为他的Windows 98计算机安装了一个网卡，但这个网卡不是“即插即用的”的。网卡必须使用IRQ 11(第11号中断)，而IRQ 11现在正被系统中另一个设备使．用。该用户应使用下列中的( )才能找到IRQ 11设备，并在可能的情况下改变这台设备的IRQ

A:设备管理器(Device Manage B:系统监视器(System Monito C:“帮助”中的疑难解答(故障检修向导) D:系统工具中的“维护向导”

某用户刚刚为他的Windows 98计算机安装了一个网卡，但这个网卡不是“即插即用的”的。网卡必须使用IRQ 11(第11号中断)，而IRQ 11现在正被系统中另一个设备使用。该用户应使用下列中的( )才能找到IRQ 11设备，并在可能的情况下改变这台设备的IRQ

A:设备管理器(Device Manage B:系统监视器(System Monito C:“帮助”中的疑难解答(故障检修向导) D:系统工具中的“维护向导”

在Cisco 路由器上进行SNMP 设置时，如果团体名为manage ，访问权限为只读，那么正确的配置语句是（）

A:snmp-server community public ro B:snmp-server community public rw C:snmp-server community manage ro D:snmp-server community manage rw