【单选题】The fire of fuel oil is classified as a ____fire.
【简答题】有一基孔制的孔轴配合,基本尺寸D=φ25mm,Ts=21μm,Xmax=+74μm,Xav=+47μm,试求孔、轴的极限偏差、公差带代号、配合公差,并画出公差带图,说明其配合种类。 公称尺寸 标准公差 IT (μ m ) 轴基本偏差 es (μ m ) 大于 至 6 7 8 9 d e f g 18 24 13 21 33 52 -65 -40 -20 -7 24 30 30 40 16 25 3...
【单选题】20100133在Windows 中,当一个窗口最大化后,下列叙述不正确的是 (33) 。
【单选题】Which of the actions listed should be taken FIRST to control an oil fire in a fuel oil tank?
A.
Commence draining that tank as quickly as possible
B.
Seal off all vents to that tank
C.
Activate the CO2 system to that tank
D.
Shut off the steam heating coils
【单选题】The fire of fuel oil is termed _______fire.