【单选题】【消耗次数：1】
藻酸盐印模材料水胶体因凝胶水含量减少出现裂隙的现象称为（）
①
凝溢
②
渗润
③
裂隙
④
龟裂
⑤
脱水
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】
______ the storm, we should have reached our company.
①
Because of
②
In spite of
③
In case of
④
But for
【单选题】
The rug is______ much better quality. It is made of 80% cotton and 20% wool.
①
from
②
of
③
in
④
at
【单选题】
How I wish every family______ a large house with a beautiful garden!
①
had had
②
will have
③
had
④
has
【单选题】
And lastly, do you do anything else to ______ healthy?
①
stain
②
still
③
stay
④
stick
【单选题】
Weather______, we will go to the beach on Saturday.
①
permit
②
permits
③
permitting
④
permitted
【单选题】
______, this book is not very difficult.
①
Generally say
②
Generally saying
③
Generally speak
④
Generally speaking
【单选题】
Johnregretted_______tothemeetinglastweek.
①
not going
②
not to go
③
not having been going
④
not to be going
【单选题】
The weather was terrible outside. She entered the office, her nose ______ with cold.
①
red
②
to be red
③
being red
④
has been red