藻酸盐印模材料中硫酸钙的作用是()
A.胶结
B.粉剂
C.弹性基质
D.促凝
E.缓凝
参考答案:D
单词拼写 。
根据题中所给的汉语或首字母写出符合句意的单词的正确形式.
1. Their opinions will not a __________ my decision.
2. This book __________ (包含) all the information you need.
3. He failed in the __________(履行) of his duty.
4. Susan is on a special d ___________ to lose weight.
5. I don't have any e __________ money.
在PowerPoint2003中,若希望在文字预留区外的区域输入其它文字,可通过文本框按钮插入文字。