按合同类型索赔可以分为（）。
A、总承包合同索赔
B、分包合同索赔
C、劳务合同索赔
D、预算合同索赔
E、招标合同索赔
参考答案：A, B, C
若关于x的不等式（a-x）（b-x）＞0的解集为{x|x＜a或x＞b}，则实数a，b的大小关系是______．
根据所给汉语提示,写出空缺处单词正确形式。
1. What are you so ______(紧张) about?
2. Some children are afraid of the ______ (黑).
3. You can ______(辨别) a person's voice on the phone .
4. He uses a pair of _______(眼镜) now.
5. This guy is definitely (笨)
e afraid of the ______ (黑).