选择题:The country has become ______ in food production s

题目内容:
The country has become ______ in food production since the 1980s.( )(本题2.0分)
A、 self-reliance reliant
B、 self-sufficient
C、 self-serviced
D、 self-respected
参考答案:

通航河流上重力式桥台与重力式桥墩比较,其计算荷载还应考虑A.纵向风力B.横向风力C.流水压力D.土侧

通航河流上重力式桥台与重力式桥墩比较,其计算荷载还应考虑A.纵向风力B.横向风力C.流水压力D.土侧压力

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悬索桥加劲梁试拼顺序为( )A.按两端向跨中B.按跨中向两端C.按架梁顺序D.按加工顺序

悬索桥加劲梁试拼顺序为( )A.按两端向跨中B.按跨中向两端C.按架梁顺序D.按加工顺序

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