( )的防治可考虑水土保持、跨越、排层和滞流拦截等措施。
A．崩塌
B．滑坡
C．泥石流
D．岩熔
参考答案：C
砂轮是由磨料和（）粘结成的多孔物体。
Because Web servers are platform and application (71) ，they can send or request data fromlegacy or external application including database．All replies，once converted into (72) arkup language，can then be transmitted to a (73) ．Used in this way，Intranets can (74) lower desktop support costs，easy links with legacy application and databases and， (75) all，ease of use．
A．browser
B．repeater
C．router
D．server
