eliminate navigational hazards by allowing the chain to lie along the harbor bottom
increase the anchor's reliability by providing a large catenary in the chain
permit the ship to maneuver in the stream while weighing anchors
prevent damage to the stern caused by swinging against the pier in the approach
第1题：
Which safety precaution（s）should be observed during crane operations ________．
A.Checking for proper lifting from beneath the load during cargo operations
B.Using the proper slings or other lifting devices during cargo operations
C.Relaying communications to port agents on the pier during cargo hoists
D.All of the above
第2题：
You are anchoring in 16 fathoms of water．On a small to medium size vessel，the ______．
A.Anchor may be dropped from the hawse pipe
B.Anchor should be lowered to within 2 fathoms of the bottom before being dropped
C.Scope should always be at least ten times the depth of the water
D.Scope should always be less than 5 times the depth of the water
第3题：
A、to pay
B、paying
C、being paid
第4题：
Because of hardware failure， you decided to drop a redo log member from the database. Which condition should be met to drop a redo log file？（）
第5题：
Apart from a mastery of a foreign language, what other knowledge should a foreign language teacher have in order to do his/her job well?
He/she should have some knowledge about the related subjects such as linguistics, psychology and pedagogy. He should also know that a lot of variables influence classroom teaching. Factor like foreign language education policy, the goal of foreign language education, learners, teachers, syllabus, teaching method, teaching materials teaching aids, and assessment and evaluation all influence classroom teaching. If a teacher does not know them he would not be able to teach according to the circumstances and would achieve the best results possible.
略
第6题：
You are proceeding down a channel and lose the engine（s）．You must use the anchors to stop the ship．Which statement is true ________．
A.Pay out all of the cable before setting up on the brake to insure the anchors dig in and hold
B.For a mud，mud and clay，or sandy bottom pay out a scope of 5 to 7 times the depth before setting up on the brake
C.Use one or both anchors with a scope of twice the depth before setting the brake
D.Drop the anchor to short stay and hold that scope
第7题：
You are anchoring in a river where the current is from one direction only．The best way to lay out two anchors is to have them ______．
A.Directly in line with the bow
B.Side by side，with their lines on the port and starboard side
C.So that their lines form an angle
D.On top of one another
第8题：
The term SEAWORTHY TRIM means ______ the ship must be in trim to meet the perils of the passage by sea to the next port not only in the sense that she should be left with an adequate amount of cargo to keep her on an even keel，but also that where necessary part of her cargo should be bagged to stop it shifting while out at sea．
A.it
B.that
C.where
D.while
第9题：
WALK OUT ANCHORS.的意思是：走锚。
第10题：
Chain stopper
Devil's claw
Hawse ratchet
Riding pawl