一般来说，金融结构越复杂，金融发展的程度就越高，经济就越发达。（）
中国的“银河I”型计算机从研制到成功经历了几年时间（）。 三年。 四年。 五年。 六年。
简述影响肥肝生产的因素。
Which two statements about the diffserv model are true？（） a class can be inentified as a single application .multiple applications with similar service nees.or be based on the source or destination ip addresses.。 a drawback of the diffserv model is that it does not provide backward compatibility with devices that can only use the tos field.。 diffserv uses the diffserv field in the MAC header to mark frames into behavior aggregates（BAs）。 the diffserv field occupies the same eight bits of the mac header that were previously used for the tos field.。 the first six high-order bits of the diffserv field are used to identify the resource reservation protocol（RSVP） value .。 the primary goal of diffserv is scalabilty.。
铜元素的存在有助于提高带钢的（）。
边运行边上下乘人的游乐设施，乘人部分的进出口不应高出站台（）mm
