社会历史形态更替的统一性表明,某一国家在发展过程中无法超越某一社会形态实现跨越式发展。
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It rained continuously for seven days, completely ________ our holiday.
A. ruined
B. to ruin
C. ruining
D. being ruined
Engines are machines _______ power or motion.
A. produce
B. producing
C. produced
D. which producing
With no rain for months and fresh water ________, the situation in Yunan Province was getting from bad to worse .
A. run out
B. run out of
C. running out
D. running out of
Early this year cruel snowstorms hit southern China , ________ great transportation problems in some areas .
A. causing
B. caused
C. to cause
D. having caused