将下列干湿地区与其对应的植被类型连接起来。(4分) a．湿润地区①荒漠 b．半湿

某男性患者，因咳嗽、咯血、消瘦4个月收住院。X线胸片提示肺结核，行抗结核治疗。

实施营养支持治疗时，热能供给量应为（）

A.10～20kcal/（kg·D.

B.20～30kcal/（kg·D.

C.30～40kcal/（kg·D.

D.40～50kcal/（kg·D.

E.60～70kcal/（kg·D.

Frame Relay is simplified form of (71) , similar in principle to (72) , in which synchronous, frames of data are routed to different destinations depending on header information . Packets are routed throught one or more Virtual Circuits known as (73) . Most Virtual Circuits are (74) ,which means that the network provider sets up all DLCI connections at subscription time. (75) are also part of the Frame Relay specification . They privide a link that only lasts only as long as the session.

A．DLCIs

B．HDLCs

C．SDLCs

D．DLs

不属于大学生权益特征范畴的是（）。

A.规则性

B.专属性

C.法定性

D.私有性

接触器常开触头是靠（）作用闭合的。

A.释放弹簧弹力

B.触头弹簧弹力

C.线圈电磁吸力

D.永久磁铁斥力

稳态是指内环境

A．化学组成相对稳定

B．各种物质组成和理化性质相对稳定

C．理化性质恒定不变

D．理化性质相对稳定

E．化学组成不变