混凝土抗折强度试验的三个试件中,如有一个断裂面位于加荷点外侧,则取另外两个试件测定值的算是平均值作为测定结果,并要求这两个测点的差值不大于其中较小测值的15%。
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道路路面或机场道面用的水泥混凝土,以抗压强度为主要强度指标,抗弯拉强度作为参考指标。
A. 对
B. 错
Conquer.A mere word representing mankind's ability to 1.____.This is the means to fight your fears from ruling you, to begin your 2.____.A journey into the unknown.A journey to reach this bold word.A journey that'll get you 3.____along the way.You will find yourself in the dark struggling alone.But these are the tests that the 4. ____will place in front of you.To see how strong your 5.____really is.Their destiny will never be reached if you don't depart.And you must never 6.____. Understand the word "conquer" does not voluntarily 7. ____the obstacles that are about to come.But simply allows you the 8. ____to greet them yourself.You will feel as though you are blindly running through life.But I ask you to close your eyes.And trust your 9.____, trust your body, trust your spirit, trust you.Your 10.____is simply a vision of the paradise you have created in your mind.You must venture into the 11.____with the acceptance that everything you go through will have a purpose.The purpose to learn, the purpose to 12.____, the purpose to create.You see we're all here on this 13.____for a specific reason. We must find it, define it.And never stop believing in our destiny.Because life has no 14. ____until you created it.It is the obstacles we overcome that grant us the true 15. ____in life.The beauty that confirms that everything that you have ever struggled for was 16. ____it.If you find trust in your faith, and what the universe has for you, you will find what you have always been looking for. Because life is not about the 17.____, it's about the journey.
单活塞杆液压缸伸出时的速度比缩回的速度( )。
A. 快
B. 慢
C. 相等
D. 不确定
液压执行元件的输出参数为( )。
A. 力
B. 转矩
C. 力或转矩、速度或转速
D. 速度或转速