题目内容
水泥混凝土路面弯拉强度试验以3个试件测值的算术平均值作为测定值,3个试件中最大值或最小值如有一个与平均值之差超过平均值的15%,则取平均值作为测定结果,如最大值和最小值与平均值之差均超过平均值的15%,则该组试验结果无效。
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Task 5 Listen to the following speech twice and fill in the blanks with what you hear.[音频]Ladies and gentleman:My name is David Truman and I am the _____1_____ of Simons Facilities Corporation. Thank you for inviting me to speak here today about future energy technologies. _____2_____, let me introduce our company, SFC, to you.Simply put, SFC is one company with two lines of _____3_____ - power and water, and our history dates back to over 100 years ago. Today we are one of the 50 largest companies in the UK. More than 20,000 of our employees build and _____4_____ power and water facilities in England, Scotland and Wales.With this _____5_____ as background, now I would like to come to the topic of my speech today: What new energy technologies are there and where can they take us?
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