This passage is mainly about
A. corporate culture．
B. corporate philanthropy．
C. corporate financing．
D. comte image．
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According to researchers ill the Chicago symposium,
A. biologists have properly realized the conllllon existence of seismic signaling.
B. seismic signaling is a means of communication that has been comprehensively studied.
C. seismic signaling call show many mysterious featums of animal behavior.
D. the research approach has led to the fruitful research into seismic signaling.
The elephant seal’S bulls are notorious for
A. slugging them out for terdtofial defense for their offsprings．
B. fighting with each other to own harems of females.
C. their act of aggression against other animals．
D. competing fiercely with each other for locating meals。
The majodty of back-formed Words are
A. nouns．
B. adjectives．
C. verbs．
D. adverbs．
Susan，s students sold lollipops，asked the community for donations and collected their own
A. raise money for their nip to Camp Kern．
B. make Easter baskets for the holiday．
C. raise money for the victims in the flood．
D. buy clothes，furniture and food for the sch001．
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