[单选题]The load chart of a crane enables the operator to combine the load radius with boom length to determine the().A . maximum counter weight requiredB . minimum horsepower requiredC . hoist rope strengthD . allowable load
[单选题]严寒地区在城市主要干道上设置消防水鹤,消防水鹤的布置中,说法错误的是()。A.布置间距宜为1000mB.连接消防水鹤的市政给水管的管径为DN200C.
[单选题]信号机、水鹤距离正线的限界为()mm。A .2000B .2150C .2440D .3600
[单选题]There is ______water in the glass, is there?A.a fewB.notC.fewD.little
[单选题]Farmers use water in many ways.______, they use water to grow crops.A.In fa
[单选题]Farmers use water in many ways. ________, they use water to grow crops.A.In
[单选题]______ the temperature, ______ water turns into steam.A. The high... the fastB. Higher... fasterC. The more higher... the fasterD. The higher... the faster
[单选题]______no air or water, there would be no life in the world.A. There wasB. There wereC. Is thereD. Were there
[单选题]There is some water in the bottle, _____?A.isn't thereB.is thereC.isn't itD