Peoplewhodonotsleepenoughtendtobecomeirritable.

• A.easilyannoyed
• B.ill
• C.weary
• D.stiffandsore

Cometsarestillregardedwithawebysomepeople.

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

AlthoughtheCarbon14methodofdatingoldobjectsisnotfoolproof,itisthebestmethodavailableatpresent

• A.whollyoperational
• B.entirelyserviceable
• C.fullyreliable
• D.completelysafe

Someanimalspantandsweattospeedevaporationofbodymoistureandthuscoolthemselves.

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

DoubleEagleinthefirsttransatlanticballoon,wasgreetedbyavidcrowdsinFrance.

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

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