尼龙带的抗拉力为()。 ["5kN","10kN","15kN","20kN"]
采用打桩法人工地基时,应注意局部换土的新土应与周围土质接近,为什么?
The identification character of each Navtex station is regarded as()to the messages. ["the only preamble","a part of the preamble","the closing","the suspensio"]
影响决策效果的要素除了决策者、决策目标、决策备选方案和决策后果,还有:()。 ["决策情景","决策过程","决策约束","决策反馈"]
薬を飲んだのに、()熱が下がりません。 ["また","まだ","もう","すぐ"]
哪些介质管道须静电接地?管网的接地连接点和接地电阻值有何要求?