Which is heavier, a pound of cotton or half a kilogram of gold?

Which one of the following rules is not regarding two power-driven vessels meeting end or nearly end on so as to involve risk of collision（）.

Verbal presentation of new words means that the meaning of a second language word is demonstrated through concrete objects, visual aids, or through mime and acting.（）

 ______ twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.

Is this（）longer or shorter?

The goal, which they are unlikely to live to see , is tocure, prevent or manage all diseasesin the next 80or so years.

The number of the cars in our neighborhood is about eight ______, and ______ of them are new cars.

Whenever visible traces of oil are observed on or below the surface of the water in the immediate vicinity of ship or its wake，Governments of Parties to the Convention should，to the extent they are reasonably able to do so，promptly（）the facts bearing on the issue of whether there has been a violation of the provisions of this Regulation or Regulation 10 of this Annex of MARPOL 73/78.

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

The（）may examine or re-examine the goods or take samples from them straightaway in the absence of the consignee or the consignor whenever it considers this necessary.

（1） analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems．Ultimately, the system models become the（2） for designing and constructing an improved system. （3） is such a technique. The emphasis in this technique is process-centered．Systems analysts draw a series of process models called （4） . （5） is another such technique that integrates data and process concerns into constructs called objects.

The latest car model embodies（） the new research development.