当发生水灾，副、主井无法提绞时，井下人员应如何升井（）A.从风井、副井梯子间升井 B

Traditional Internet access methods like dial-up were so slow that host computers were connected to the dial-up (1) at the customer premise over slow (2) ports. PPP was designed to run directly over these serial links. But with the advent of broadband Internet (3) technologies such as ADSL and cable modems there has been a considerable increase in the bandwidth delivered to the end users. This means that the host computers at the customer premise connect to the (4) or cable "modem" over a much faster medium such as Ethernet. It also means that multiple (5) can connect to the Internet through the same connection.

（4）应填入（）

A．FDDI

B．HDSL

C．ADSL

D．CDMA

下述哪项为胰岛D细胞瘤（）

A.生长抑素瘤

B.胰岛素瘤

C.舒血管肠肽瘤

D.胃泌素瘤

E.胰高血糖素瘤

道路运输价格的制定方法主要有成本导向定价法、需求导向定价法和______三类。

A．价值导向定价法 B．政策导向定价法
C．竞争导向定价法
D．利润导向定价法

示功图包括的热力过程有（）.

A.压缩，燃烧，膨胀，排气和进气

B.压缩，燃烧，膨胀

C.压缩，燃烧，膨胀和等容放热

D.压缩，燃烧，膨胀，排气

腊肠