操作技能考试按考试条件可以分为（）几种。

焊工操作技能考试时，垂直固定的管状试件考试合格后，可免考( )板状试件。但板状试件考试合格不能免考垂直固定管状试件。

Project（71）is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

● Project（71）is an uncertain event or condition that, if it occurs, has a positive or a negative effect on at least one project objective, such as time, cost, scope, or quality.（71）

 ______ 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.

A declaration made by the Master before a PRC Consul，giving particulars regarding heavy weather or other incidents which may have caused damage to the vessel or cargo，through no fault of the vessel，her officers，or crew is a(n)（）.

（）是指普调考、技能竞赛、新员工结业考试或技能竞赛等规模较大的考试考核活动。

It is flammable cargo. Keep it away from the （）.

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（）.

加油站经理认证考核（试）包括理论知识考试和实操技能考核。其中理论知识考试（）分以上为合格，实操技能考核（）。

Through receiving financial support from family, community or the government is allowed, it is never admired.

Damage to cargo caused by fumes or vapors from liquids，gases，or solids is known as（）.