【简答题】She won the first prize in the speech contest and __________surprised us. A.which B.it C.as D.who
【简答题】在业主、承包人、监理单位之间形成的合同及相互关系中,下列叙述中正确的有( )。
【简答题】检查某教学楼的自动喷水灭火系统时发现:最不利点的喷头处压力表显示工作压力为0.03Mpa,经放水测试,控制室联运控制器不显示水流指示器的动作信号,该系统约有3000只喷头,设有3个报警阀组,在水泵房检查发现喷淋泵的出水阀门被关闭。对关闭喷淋泵出水阀门的行为应当如何处理?
【单选题】My grandfather is such a forgetful person that he has to _______ many things, even his daily meals. [ ]
【判断题】数控机床刀具从机械手中脱落,排除故障时应更换卡紧销或弹簧。