11.As aquatic plants moved millions of years ago from the ocean to the land,they underwent a
$ X1 E5 Y4 ~" e# r. _2 F" c number of adaptations./ i+ v/ q2 h9 p8 ?* d0 w. Y1 g
A mishaps B expansions C setbacks D modifications. B3 i$ U6 Y# e0 f
12.One of Californias greatest problems is providing adequate water to meet the needs of its - s, c# ^" o+ O3 y6 p, m% m1 `
expanding population.
) V- N$ _3 x A0 o A sufficient B palatable C suitable D unpolluted
3 o1 h) P! z( a' I8 D13.Weed killers must be chosen and applied with great care to avoid damage to adjacent trees and
9 X, k9 L; i) D5 v, } shrubs.
: a+ X+ J* d( G+ L6 S( ` A indigenous B nearby C perennial D similar
2 `( s6 t! m9 q5 L1 x14.Eleven states,including the adjoining states of North and South Carolina,seceded from the
. o/ H+ B b5 J& @7 X' j United States in the 1860s and formed a southern confederacy.! J8 ?9 d$ N, u" i3 b1 }: y
A separated B neighboring C colonial D competing
" [: Z( j+ X O# D4 J9 @( J' G* b15.I admire his work.
8 x; m i3 E, k8 ^- \! x A recognize B exploit C tolerate D esteem 2 X3 N- ^- x) ` p% F% g$ N$ M
11.D12.A13.B14.B15.D |
发表于 2012-8-15 23:30:26
