The “teacher-free exam” means that students take their exams ______ teachers. Students must be more honest.

（ ）Some students prefer yellow rulers or erasers when they study for exams because yellow is the color of __________.

Since the burning or combustion takes place within the engine itself, the engine is known as （）.

机关聘任公务员可以参照公务员考试录用的程序进行公开招聘，不可以从符合条件的人员中直接选聘。

If necessary to avoid collision or allow more time to（）the situation，a vessel shall slacken her speed or take all way off by stopping or reversing her means of propulsion．

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（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

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.

A current moving across a lock entrance toward the river or toward the dam is called a(n)（）.

机关聘任公务员应当（）公开招聘。