The"felt"imageismuchmoreimportantbecause（）. A: ithelpsyoulocatenewsensations B: ithasaconsistentrightandleftandtopandbottom C: alloftheabove

He______invaintomakehiswifehappy. A: endeavored B: madeendeavor C: triedtheendeavor D: alloftheabove

Whentakingactiontoavoidcollision，youshould（）. A: Makesuretheactionistakeninenoughtime B: Notmakeanylargecoursechanges C: Notmakeanylargespeedchanges D: Alloftheabove

Beforeenteringthechainlocker，youshould（）. A: havesomeonestandingby B: makesurethereissufficientairwithinthelocker C: de-energizethewindlass D: Alloftheabove

TherearemanygoodChinesegiftsmentionedinthislecture，suchas______. A: Chineseknotandthechina B: silkandpainting C: calligraphy D: alloftheabove

Libraries A: fieldofWriting B: spellingoftitles C: spellingofwriters"names D: alloftheabove

Cultureislikeaniceberg,itis________ A: observable B: objective C: subjective D: alloftheabove

Inthe19thcenturyAmerica,Romanticismhadcertaingeneralcharacteristics.Choosesuchcharacteristicsfromthefollowingitems.________. A: Moralenthusiasm B: Faithinthevalueofindividualismandintuitiveperception C: Adorationforthenaturalworld D: Alloftheabove

Theseconventionaldeclinecurvetechniquesincludeequationsfor()decline. A: exponential B: harmonic C: hyperbolic D: alloftheabove

AV-shapedripplewiththepointoftheVpointingupstreaminarivermayindicatea（）. A: submergedrock，notdangeroustonavigation B: sunkenwreck，notdangeroustonavigation C: towed-underbuoy D: Alloftheabove