Cometsarestillregardedwithawebysomepeople.

• A.wonder
• B.concern
• C.resentment
• D.detachment

Bythenineteenthcentury,embroideryonmen'sclothinghadvirtuallydisappearedexceptfortheoccasionaldecorativevestandtie.

• A.almost
• B.definitely
• C.already
• D.universally

Someanimalspantandsweattospeedevaporationofbodymoistureandthuscoolthemselves.

• A.wiggle摆动slowly
• B.breathequickly
• C.rest
• D.perspire

DoubleEagleinthefirsttransatlanticballoon,wasgreetedbyavidcrowdsinFrance.

• A.eager
• B.surging
• C.appreciative
• D.vigorous

TheSalkvaccineisamajorfactorinthefighttoeradicatepolio.

• A.completelydestroy
• B.carefullydisguise
• C.sustain
• D.contain

Somechildrendisplayanunquenchable难以抑制的curiosityabouteverynewthingtheyencounter.

• A.insatiable贪的无厌的
• B.inherent
• C.indiscriminate不加选择的
• D.incredible