The author of the passage implies that the disagreement among scientists is based on the fact that ________ .




A.each continent has several planes and shelves
B.continents have various underlying layers of crust
C.continents undergo compression and experience tension
D.continents have different chemical makeup

It can be inferred from the passage that the Articles of Confederation ___________.




A.were supported by a majority of the delegates at the Convention
B.were revised and presented as the Large State Plan
C.allowed small states to dominate large ones
D.provided for only a weak central government

Everyone expects Johnson to _________ Smith in today's final.




A.beat
B.draw
C.win
D.lose

Most people prefer ________ at home rather than ________out on rainy days.




A.stay, go
B.staying, go
C.to stay, go
D.staying, going

A.insupportable
B.experimental
C.centenarian
D.confidentially

A.superior
B.tranquility
C.convenience
D.entertainment

Which aspect of butterflies does the passage mainly discuss?




A.Their adaptation to different habitats
B.Their names
C.Their physical characteristics
D.Their variety

_______(57)




A.unless
B.without
C.although
D.despite

Students suppose to read all the questions carefully and find out the answers to them.




A.suppose
B.all the questions
C.out
D.them

The word intake is closest in meaning to _______ .




A.desire for
B.investment in
C.ingestion of
D.purchase of