桩锤按其作用原理，可分为落锤、蒸汽锤、柴油锤、液压锤。()
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《晚登三山还望京邑》是典型的古体诗歌。()
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Spam Text Message 垃圾短信 Write an essay of 160-200 words based on the drawing. In your essay, you should 1)describe the drawing briefly, 2)explain its intended meaning, and 3)give your comments.
钢筋拉力试验包括抗拉强度、屈服点和伸长值三个指标。()
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