The fear of smallpox, which terrorized the eighteenth century, has no analogy(likeness) today.
A、occurrenceD
暂无解析
MaryMcCarthyssatires讽刺文学arecouchedinaprosestylethathasaclassicprecision.
Someseaurchins海胆havevenomous(toxin)spines
TheSalkvaccineisamajorfactorinthefighttoeradicatepolio.
Cometsarestillregardedwithawebysomepeople.
Thecontrolsofmostmodernairplanescanbeoperatedeithermanuallyorautomatically.
