台阶法施工工艺根据地质及开挖断面主要有哪些类型?
参考答案:
长、短和超短台阶法施工。
According to the author in Paragraph 1, what animals suffer most in captivity
A.Climbing animals.
B.Hunting animals.
C.Parroting animals.
D.Singing animals.
企业在销售商品时,如果估计价款收回的可能性不大,即使收入确认的其他条件均已满足,也不应当确认收入。( )