主要用于鉴别并明确肾源性化生/腺瘤和其他腺性病变的标志抗体是（）。 A.CK B.C

按照分布范围对网络进行划分，北京到上海之间的网络属于（）。

A.LAN

B.MAN

C.Intranet

D.WAN

Which of the following is least likely to be an incentive for structuring a lease as an operating lease instead of a capital lease（）

A. The period of use is short relative to the overall life of the asset.  

B. The lessee is in a high tax bracket and the lessor is in a low tax bracket.  

C. The corporate bond indenture contains specific covenants relating to financial policies that the company must follow.

证件照的拍摄

长沙什么公司生产的10万套“山猫”卡通形象彩盘出口南美洲的墨西哥，打破了国际卡通产品市场一直由欧美日韩等国外卡通强国垄断的局面，为中国卡通衍生产品抢占国际市场打开了一条道路？

焊接电弧不能稳定燃烧有哪些原因？