【简答题】把钢经过淬火,再经高温回火的热处理称为()处理。
【单选题】外板展开图的作用是( )1反映了全船外板的排列,厚度及外板上开口的位置2用于造船与修理时确定船体钢板的规格和数量3可作为施工时的依据
【单选题】外板展开图的作用是________。1反映了全船外板的排列,钢板编号、厚度、尺寸及外板上开口的位置;2用于造船与修理时确定船体钢板的规格和数量;3作为申请备料和订货的主要依据;4也可作为施工时的依据。
【简答题】Which of the following statements is wrong about the Internet of Things?A. It includes just about everything that can be equipped with sensors that collect data and connect to the Internet. B. It incl...
【简答题】外板展开图的作用是( )1反映了全船外板的排列,厚度及外板上开口的位置2用于造船与修理时确定船体钢板的规格和数量3可作为施工时的依据
【单选题】结核分枝杆菌对干燥具有特别强抵抗力的主要原因是
【简答题】前照灯的灯泡主要由____、____、____、 ____。
【单选题】What are the disadvantages of 'Things of Internet' according to Raft Haladjian? 查看材料
A.
Different things can't communicate with each other.
B.
They are too expensive and without utility.
C.
The safety of them can't be ensured.
D.
They may threaten people's privacy.