(In) the nineteenth century the Mohave Indians (lived) in the Northern Hemisphere grew (their) crops on river bottom (lands).
A.In
B.lived
C.their
D.lands
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The italicized word "telesurgery" (Line 3, Para. 1) can be best explained as ______.
A.an operation done over a distance
B.an operation done on television
C.an operation demanding special skill
D.an operation demanding high technology -
(In) the same way that (news services) have changed (since) the invention of television. So(does) entertainment.
A.In
B.news services
C.since
D.does -
The ozone layer (must be protected) because (it) shields the Earth (from) excessive ultra-vilolet (radiations).
A.must protected
B.it
C.from
D.radiations -
A.searching
B.supplementing
C.popularizing
D.polarizing -
A.segmenting
B.satisfying
C.characterizing
D.chartering