【简答题】【消耗次数：1】
材料的吸水性是指材料在_____ 。
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相关题目
【单选题】
材料的吸水性是指（ ）。
①
指材料抵抗压力水或其他液体渗透的性质
②
材料在水中吸收水分达饱和的能力
③
材料在长期饱和水的作用下，不破坏、强度也不显著降低的性质
④
指材料在潮湿空气中吸收水分的能力
【简答题】
材料的质量吸水率和体积吸水率有何不同？什么情况下采用体积吸水率来反映材料的吸水性？
随机题目
【单选题】
There is_______ coffee in this glass as in that one.
①
five times as many
②
five times as much
③
five times than
④
five times more
【单选题】
--I was quite surprised that I was elected as the chairman of the meeting.--________________________________
①
I think so.
②
You shouldnt surprise.
③
You are welcome.
④
You did an outstanding job and you really deserved it.
【判断题】
Different cultures give different styles of response to compliment(赞美), for example, Chinese people are likely to say Thanks a lot .
①
正确
②
错误
【判断题】
When you ask sb. to open the window, if you are a lady its polite to say Open the window, will you? if you are a man you should say Lets open the window, shall we?
①
正确
②
错误
【判断题】
When you are asked Whats your name?, its more polite to respond with a whole sentence My name is... than only telling a name.
①
正确
②
错误
【判断题】
The question What is your affiliation? is to ask where you are working,you should answer I am with...
①
正确
②
错误
【单选题】
－Hello, may I talk to the headmaster now?－______________
①
Sorry, you can’t.
②
No, you cant.
③
Sorry，he is busy at the moment.
④
I dont think so.
【单选题】
—How long will you be staying?—_________________.
①
On Oct 20th.
②
At Friday.
③
Four days.
④
In a week.