（）means a unit in which goods are totally enclosed by sufficient strong boundaries such as a freight container，a tank or a vehicle unit with fabric sides or tops.

You are on a containership. The cargo includes a container of small arms ammunition，a container of lead-acid storage batteries and bottles of methyl acetylene. Which statement is TRUE?（）.

You are on a containership carrying a tank container that had been filled with sodium hydroxide solution. The container is empty but has not been cleaned. Which，if any，placard is required?（）.

A half-height container is used（）.

The use of containers will make the cargo-handling safer if（）that the man-hours of exposure to risk will decrease.

When arranging cargo for（）in the holds，we should give first consideration to ship’s seaworthiness and her being in a good sea-going trim after loading.

A vessel has a strong wind on the port beam. This has the same affect on stability as（）.

（）cargo means to check all cargo loaded into or discharged from a vessel.

On board container carriers，below-deck containers are stowed（）.

Because of the arrangement of the cell guides，the MOST important factor while loading containers is the（）.