新奥法的基本施工原则（），早支护，勤量测，紧封闭。
参考答案：少扰动
—Dad forgot to mail the letter again.
— ______. Mum is always complaining about his declining memory.
A．What a pity
B．Never do it again
C．I’m with you on that
D．That’s just typical
论文中作者署名居于题目的（）。
A.上方
B.下方
C.上方居中
D.下方居中
