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水泥混凝土面层混凝土水灰比愈大,其强度愈高()

A. 对
B. 错

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水泥混凝土面层验收时的实测项目除其他指标外,还包括相邻板高差的检测

A. 对
B. 错

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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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Task 2 Mr. White is meeting with Mr. Brown from the Head Office. Listen to the conversation and match the people below with their job titles.[音频]

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The SPS agreement includes the following principles except .

A. regulations must be based on science
B. member countries can take precautionary measures according to “safety first” principle to deal with scientific uncertainty.
C. member countries are encouraged to use international standards where they exist.
D. member countries can use different standards according to trading partners’ economic level.

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水泥混凝土面层混凝土水灰比愈大,其强度愈高()

A. 对 B. 错

水泥混凝土面层验收时的实测项目除其他指标外,还包括相邻板高差的检测

Task 2 Mr. White is meeting with Mr. Brown from the Head Office. Listen to the conversation and match the people below with their job titles.[音频]

The SPS agreement includes the following principles except .

A. 对
B. 错