资源税
参考答案：
是对在我国境内开采应税矿产品及生产盐的单位和个人，因其资源条件差异所形成的级差收入征收的一种税。
Addison病患者哪一种激素水平会降低（）
A.雌二醇
B.睾酮
C.皮质醇
D.胰岛素
E.HCG
The major problem with E-mail is that it is (71) easy to use that people can become (72) with messages (73) they can possibly answer in a day. In addition, mail boxes require some management to (74) messages or archive those that might be required later. Senders don’t always know about your E-mail backlog and often send (75) messages.
A. too B. so C. very D. much
