用于提示在事故发生时可能导致非常严重人身伤害的警示词是()。
A、危险
B、警告
C、小心
D、注意
参考答案:A
I don't forget for ever how many years ago_____ was that I last met her in the coffee bar.
A.this
B.it
C.which
D.when
土壤的抗冲性