A.experience from practice
B.various types of cargoes
C.different types of ships
D.personal abilities

A.agent
B.operator
C.shipper
D.All of the above

A.the use of excessive amounts of dunnage
B.the use of excessive amounts of filler cargo
C.the failure to stow some items in neat and uniform rows and tiers
D.the skill，industry and interest of the longshoremen

A.such
B.this
C.these
D.those

A.a boom angle indicator
B.a load weight indicator
C.material invoices for shipping weights
D.prior experience with similar lifts

A.on
B.in
C.from
D.to

A.the broken stowage listed
B.the broken stowage calculated
C.the broken stowage given
D.the actual broken stowage

A.together with
B.on top of
C.underneath
D.away from

A.rigging a back stay
B.raising the boom
C.increasing the mechanical advantage of the cargo purchase
D.taking all slack out of the preventer

A.provide
B.provides
C.providing
D.be provided

A.braces
B.dunnage
C.shores
D.toms