离心泵卡圈（口环）径向间隙的大小取决于输送的介质和（）的大小。
在同时使用两系列输油作业时，一个系列输油后压力异常时，此时你认为应怎样处理？（） ["停止两系列输油管线的泵、关闭外输控制盘、关闭（SDV-3217）","停止异常高压的那条管线的泵","停止异常高压的哪条管线，管闭外输控制盘，关闭（SDV-3217）"]
What is the result？（） ["The code will deadlock.","The code may run with no output.","An exception is thrown at runtime.","The code may run with output "0 6".","The code may run with output "2 0 6 4".","The code may run with output "0 2 4 6"."]
When using the Tivoli Dynamic Workload Console， which monitor tasks are available to the user？（） [" all those that have been created by all users"," just those created by the user in the current session"," all those created by the user and shared with user’s login group"," just those where the connection engine specifies the user’s logo"]
禁止用灰口铸铁制造瓶帽是因为灰口铸铁（）。 ["易松动；","互换性差；","抗撞击性能较差；","装配性差"]
城市园林绿化评价指标
