工程技术方面的风险因素不包括()。
A.自然条件
B.分包
C.技术规范
D.工程变更
参考答案：B
Bob thought he couldn’t go to the party because he had too much homework, but persuaded by his friends, he went _________.
A．above all
B．in all
C．after all
D．first of all
对双方无争议的土地权属界线，应按规定格式填写土地权属界线协议书一式（）份。
A.两
B.三
C.四
D.五
