单选题A spreader bar is used to（）.A increase the lifting capacityB increase the lifting radiusC protect the slingsD protect the upper part of a load

Click the Exhibit button. Given the fully-qualified class names: com.foo.bar.Dog com.foo.bar.blatz.Book com.bar.Car com.bar.blatz.Sun Which graph represents the correct directory structure for a JAR file from which those classes can be used by the compiler and JVM? （）

A.Jar A

B.Jar B

C.Jar C

D.Jar D

E.Jar E

The step of a pilot ladder which prevents the ladder from twisting is the ______.

A.Proof bar

B.Shifting bar

C.Long bar

D.Spreader

Giventhefully-qualifiedclassnames：com.foo.bar.Dogcom.foo.bar.blatz.Bookcom.bar.Carcom.bar.blatz.SunWhichgraphrepresentsthecorrectdirectorystructureforaJARfilefromwhichthoseclassescanbeusedbythecompilerandJYM？（）

A.JarA

B.JarB

C.JarC

D.JarD

E.JarE

Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE ________．

A.Stack weights should be less when using a solid bar lashing as compared to a wire lashing

B.Stack heights may be increased when using a solid bar lashing

C.Stack heights should be reduced when using a solid bar lashing

D.Solid bars should be used for lashing the first tier only，with wire lashings on the higher tier（s）

A. Object codes

B. Bar codes

C. References

D. Notes

The universal lifting spreader is a lifting device used on ______．

A.dockside container cranes

B.shipboard container cranes

C.straddle trucks

D.straddle cranes

A.Intfoo=（int）Math.max（bar）；

B.Intfoo=（int）Math.min（bar）；

C.Intfoo=（int）Math.abs（bar）；

D.Intfoo=（int）Math.ceil（bar）；

E.Intfoo=（int）Math.floor（bar）；

F.Intfoo=（int）Math.round（bar）；