____________(meaning)an official document that may be used to prove that the facts it states are true.
A. certificate
B. birth
C. marriage
D. death
查看答案
____________(meaning)easily broken or damage.
A. lesson
B. course
C. fragile
D. harvest
____________(meaning)connected with the sea and the creatures and plants that live there.
A. trade
B. marine
C. creature
D. excursion
____________(meaning)to have or own sth.
A. behave
B. control
C. possess
D. charge
____、____、____构成了客观世界的三大要素。