单项选择题
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
单项选择题 Generally speaking，the heavier cargo will go into the（），distributing it evenly fore and aft，the lighter cargo will probably be placed in the（）.
单项选择题 Cargo that is suitable for carriage on Ro-Ro vessels includes（）.
单项选择题 Cargo securing for Ro-Ro is based on the concept of（）.
