一般含硫量较低的石油多产自碳酸盐岩系和膏岩系含油层。
参考答案:错
(2013·重庆,35)—Forgotten something?I can keep an eye on your kids if you want to go and get it.
—________.Thank you all the same.
A.It's very kind of you.
B.Oh,how careless of me!
C.I might as well go and get it.
D.Well,I can do without it.
通常职务形态构成可以分为三类,其中岗位的应负责任比知识技能和解决问题的能力重要的是()。
A.上山型
B.平路型
C.下山型
D.山顶型