Somechildrendisplayanunquenchable难以抑制的curiosityabouteverynewthingtheyencounter.
A、insatiable贪的无厌的All living organisms, regardless of their unique identity, have certain biological, chemical, and physical characteristics in common.
Although the Carbon 14 method of dating old objects is not foolproof , it is the best method available at present
Solid geometry has enabled astronomers to calculate the positions of the heavenly bodies relative to one another.
With the acquisition of smaller companies by larger ones, the 1960's saw a wave of new conglomerates.
Thefearofsmallpox,whichterrorizedtheeighteenthcentury,hasnoanalogy(likeness)today.
