30. If the cause of severe list or trim is off-center ballast，counterflooding into empty tanks will ___.
举一反三
- Ballast water can only be（）in cargo tanks in exceptional cases where the particular character of the operation of an oil tanker renders it necessary to carry ballast water in excess of the quantity required，provided that such operation of the oil tanker falls under the category of exceptional cases as established by the Organization.
- If your vessel has a list to port due to negative GM and off-center weight, the first corrective measure you should take is to______
- The humans are destroying nature day by day ,________ of course, will cause severe punishment from it sooner or later.
- Generally, seismic hazards may be more severe cause by reverse fault than normal fault.
- It rained heavily, ____ severe flooding in the area. A: caused B: causing C: to cause D: and caused