钻孔放水时,必须设()监测钻孔内出水情况。
A、专人
B、班长
C、其他人员
参考答案:A
UML的设计视图包含类、接口和协作,其中,设计视图的动态方面由______表现。
A.协作图和构件图 B.活动图和用例图C.类图和对象图 D.交互图和状态图
32. I______him a lift to his house, but he ________ with thanks.
A.offered; answered
B.offered; declined
C.have offered; has declined
D.presented; answered