11.As aquatic plants moved millions of years ago from the ocean to the land,they underwent a
0 U0 w5 l5 u( o number of adaptations.
( S x! J4 t. G ~7 O+ `: I A mishaps B expansions C setbacks D modifications
* p! y, e/ J" t3 P, u) P, f12.One of Californias greatest problems is providing adequate water to meet the needs of its , {; t; r$ b$ F! S* s+ c
expanding population.. N2 M+ {: B/ c) ` R; a7 @4 @, V
A sufficient B palatable C suitable D unpolluted
; ^" ~& O+ E& r. n2 V13.Weed killers must be chosen and applied with great care to avoid damage to adjacent trees and ~8 M! s) C/ B* O- Y
shrubs.
& F/ O2 p9 l1 k, y A indigenous B nearby C perennial D similar
9 L- k4 d( M4 [- I6 r2 z& u9 O14.Eleven states,including the adjoining states of North and South Carolina,seceded from the * X& Q$ d2 k$ i( X E% f: ^
United States in the 1860s and formed a southern confederacy.' A, P* ?# d( g+ w/ n i
A separated B neighboring C colonial D competing. ~0 h) a8 l7 W$ r; T# N% I6 l
15.I admire his work.; p, T) v7 E# M5 s- U; @% s
A recognize B exploit C tolerate D esteem
" g/ i; A: h5 l0 f) N l* L11.D12.A13.B14.B15.D |
发表于 2012-8-15 23:30:26
