【单选题】【消耗次数：1】
?下面的印模材料不属于弹性印模材料的是（）
①
琼脂
②
藻酸盐
③
印模膏
④
硅橡胶
⑤
聚醚橡胶
参考答案：
复制
纠错
相关题目
【单选题】
下面不是藻酸盐印模材料性能的是（）
①
一种弹性不可逆水胶体印模材料
②
完成印模后可以复制多个模型
③
完成印模后尽快灌注模型
④
具有良好的流动性、弹性、可塑性、准确性、尺寸稳定等优点
⑤
与模型材料不发生化学反应
随机题目
【单选题】
—Who broke the window ? —Not me. It must have been ____ else.
①
someone
②
anyone
③
everybody
④
nobody
【单选题】
It was the training that he had as a young man ____made him such a good engineer.
①
that
②
has
③
what
④
later
【单选题】
Eeveryone is working harder and living a happier life now, _________ ?
①
arent they
②
arent we
③
isnt it
④
isnt one
【单选题】
Most people come to realize that it is about time the government ____ further measures to control the population.
①
must take
②
is taking
③
takes
④
took
【单选题】
--_______ I put my coat here ?-- Sorry, you ________ .
①
mustnt
②
dont
③
neednt
④
cant
【单选题】
My____ brother is five years ____ than I.
①
elder … older
②
elder…old
③
older….old
④
elder…elder
【单选题】
By the end of last month, she _____ over five hundred letters of congratulation from different parts of the world.
①
would received
②
has received
③
had received
④
receive
【单选题】
-- Im taking my driving test tomorrow.-- _________ !
①
Cheers
②
Congratulations
③
Come on
④
Good luck
【单选题】
In order to _______ your goals, you must work hard.
①
make
②
achieve
③
require
④
develop
【单选题】
_______ the English examination, I would have gone to the concert last Sunday.
①
In spite of
②
But for
③
Because of
④
As for