The reason fortheir unusual behavior remains a [puzzle].

[单选题]The reason fortheir unusual behavior remains a [puzzle] .A.factB. mysteryC.

[单选题]She was a [puzzle].A.girlB.womanC.problemD.mystery

[单选题]What is the main purpose of the puzzle question of a job interview?A．To find out suitable problem solvers among the applicants.B．To judge the appropriateness of the applicants’ performance.C．To select well-educated candidates from the applicants.D．To

[试题]Itisnotunusualforworkersinthatregion_____.(A)tobepaidmorethanamonthlate(C)topaylaterthanamonthmore(B)tobepaidlaterthanmoreamonth(D)topaylatemorethanamonth

[单选题]Itisnotunusualforworkersinthatregion_____.(A)tobepaidmorethanamonthlate(C)topaylaterthanamonthmore

[单选题]__________[A] unusual[B] particular[C] unique[D] typical

[名词解释] 白骨化（skeletonized remains）

Human behavior is mostly a product of learning, whereas the behavior of an anima

[单选题]The phrase“a characteristic behavior”in Para. 1 refers to______.A．telling storiesB．writing booksC．studying folktalesD．producing movies

[单选题]This kind ofanimals are on the verge of [extincti]on,because so many are be