适用于拱桥的重力式桥台由()组成。
A.台身、拱座、侧墙或八字墙、台背排水
B.台身、盖梁、耳背墙
C.台身、台帽、侧墙或八字、台背排水
D.台身、盖粱、耳背墙、锥坡
参考答案:A
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Within a moment, its body _______ swiftly by the killer down into the depths of the sea.
A.was dragging
B.is dragging
C.was dragged
D.dragged
防止和减轻园产品冷害的方法有哪些?