Explosive and flammable gasses are most likely to be encountered on a vessel ______．A.at a

A.flammable

B.radioactive

C.explosive

D.poison

If a cargo of kerosene were considered too lean to explode，then it must be ______．

A.Above the explosive range

B.Within the explosive range

C.Below the explosive range

D.None of the above

A fuel-air mixture below the lower explosive limit is too ______．

A.Rich to burn

B.Lean to burn

C.Cool to burn

D.Dense to burn

A.rich to burn

B.lean to burn

C.cool to burn

D.dense to bur

The men ______ in a Viking armored vehicle when it hit an IED, or improvised explosive device.

A．are travelling B．travelled C．were travelling D．travel

A.bilabial

B.dental

C.labial-dental

D.explosive