下列属于“活化石”之称的孑遗树种的是()。
A.桫椤
B.水松
C.福建柏
D.观光木
参考答案:A
一 I'm sorry. That wasn't of much help.
一 ________. And it was most helpful. [ ]
A. Thanks anyway
B. It doesn't matter
C. Of course not
D. Sure it was
八项管理原则是“ISO9000:2008质量管理体系------要求”标准的().
A.附加条件
B.理论基础
C.中心思想
D.延伸