渠道纵断面测量可分段进行,每段高差闭合差不应大于()mm。
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A.goodB.realisticC.dramaticD.developed
A. good
B. realistic
C. dramatic
D. developed
A.affordableB.expensiveC.countableD.exciting
A. affordable
B. expensive
C. countable
D. exciting
A.thatB.whatC.whichD.where
A. that
B. what
C. which
D. where
A.geneticB.technologyC.scientificD.pesticide
A. genetic
B. technology
C. scientific
D. pesticide