A thrust bearing is used with a propulsion diesel engine to （）.

A . the meridian through the object of the bearing B . the meridian through the ship's position C . the meridian midway between the ship and the object D . any meridia

A . absorb the shock of wave pressure at the bow B . be placed between the engines and the foundation to absorb the vibration C . transmit the thrust of the engine to the propeller D . transmit the thrust of the propeller to the vessel

A . propeller hub B . lignum vitae C . shaft packing D . labyrinth seal

A . torque wrench B . monkey wrench C . pipe wrench D . slugging wrench

A . clearance B . crush C . pitch D . thrust

A . Wooden (lignum vitae) strips B . Hard rubber C . Resin bonded composition D . Bronze bushing

A . Splash lubrication B . Pressure lubrication C . Sight feed lubricators D . Mechanical lubricator

A . piston skirt B . pinion C . crosshead D . compression ring

A . inside the bearing B . outside the bearing C . covering the crankshaft D . none of the above

A . The marine sextant B . The chronometer C . The echo sounder D . The radar

A . dial indicator B . outside caliper C . bridge gauge D . tram rod

A . internal crankshaft passages B . immersion in oil C . splash lubrication D . injection lubricatio

A . Piston wrist pin bushing B . turbine bearing C . Spring bearing D . Diesel engine main bearing

A . Bedplate B . Block C . Base D . Sum

A . Prevents lateral movement of the slow speed gear B . Transmits propeller thrust to the hull C . Keeps spring bearings in line D . Prevents main reduction gear axial movement

A . Minimum speed estimate B . Maximum speed estimate C . Average speed estimate D . A running fix should not be used under these conditio

A .  IEEE 802.1s （MST） B .  IEEE 802.1Q （CST） C .  Cisco PVST+ D .  IEEE 802.1d （STP） E .  None of the other alternatives apply

A．suffer B．accept C．receive D．endure

A.piston skirt B.pinion C.crosshead D.compression rings

M: Well, I've got to write a paper about Hollywood in the 30s and 40s, and I'm really struggling. There are hundreds of books, and I just don't know where to begin. W: Your topic sounds pretty big. Why don't you narrow it down to something like...,uh... the history of the studios during that time？ M: You know. I was thinking about doing that, but more than 30 books came up when I typed in "movie studios". W: You could cut that down even further by listing the specific years you want. Try adding "1930s" or "1940s" or maybe "Golden Age". M: "Golden Age" is a good idea. Let me type that in... Hey, look, just 6 books this time. That's a lot better. W: Oh... another thing you might consider..., have you tried looking for any magazine or newspaper articles？ M: No, I've only been searching for books. W: Well, you can look up magazine articles in the Reader's Guide to Periodical Literature. And we do have the Los Angeles Times available over there. You might go through their indexes to see if there's anything you want. M: Okay. I think I'll get started with these books and then I'll go over the magazines. W: If you need any help, I'll be over at the Reference Desk. M: Great, thanks a lot. (26) A．Searching for reference material. B．Watching a film of the 1930s. C．Writing a course book. D．Looking for a job in a movie studio.

M: Boy, I've got to write a paper about Hollywood in the 30s and 40s, and I'm really struggling. There are hundreds of books, and I just don't know where to begin. W: Your topic sounds pretty big. Why don't you narrow it down to something like ... uh... the history of the studios during that time？ M: You know, I was thinking about doing that, but more than 30 books came up when I typed in" movie studios." W: You could cut that down even further by listing the specific years you want. Try adding "1930s" or "1940s" or maybe "Golden Age." M: "Golden Age" is a good idea. Let me type that in ... Hey, look, just 6 books came up this time. That's a lot better. W: Oh ... another thing you might consider ... have you tried looking for any magazine or newspaper articles？ M: No, I've only been searching for books. W: Well, you can look up magazine articles in the" Reader's Guide to Periodical Literature." And we do subscribe to "The Les Angeles Times. "You might go through their index to see if there's anything you want. M: Okay. I think I'll get started with these books and then I'll go over the magazines. W: If you need any help, I'll be over at the Reference Desk. M: Great, thank you. Where did the conversation most probably take place？ A．On the Internet. B．In a library. C．In a book store. D．In a historical museum.

A．hang on B．draw on C．wait on D．count on