【判断题】一空心圆轴在产生扭转变形时,其危险截面外缘处具有全轴的最大切应力,而危险截面内缘处的切应力为零。
【多选题】下面文句中,体现老子《道德经》“柔道”思想的是()
【判断题】一空心圆轴在产生扭转变形时,其危险截面外缘处具有全轴的最大切应力,而危险截面内缘处的切应力为零。
【单选题】When price term is “ CFR”, the freight column on the bill of lading should be ( ).
D.
Freight Payable at Destination
【单选题】4) In Figure 14.1, when market price is P1, and a profit-maximizing firm predict this is only a short-term situation, price will rise up to P2 soon. What will the firm do rationally?
A.
Sell all its assets and exit the market
B.
Shut-down its business.
C.
Continue operating, and produce at the quantity of Q2, making a loss.
D.
Don’t know what to do is the best.
【多选题】《道德经》说:“含德之厚,比于赤子。”“专气致柔,能婴儿乎?”“我魄未兆,若婴儿未孩。”“知其雄,守其雌,为天下蹊。为天下蹊,常德不离,复归于婴儿。”这里借用“赤子”、“婴儿”为喻,是为了表明哪两项诉求:()
【单选题】“含德之厚,比于赤子”,老子喜欢用婴儿来比喻他理想中的人格,因为( )
【判断题】一空心圆轴在产生扭转变形时,其危险截面外缘处具有全轴的最大剪应力,而危险截面内缘处的剪应力为零。