钢丝绳按钢丝的（）可分为：单捻绳、双捻绳、三捻绳。A、捻向 B、捻绕方法 C、捻绕次

（本题满分12分）已知圆x²+y²+x－6y+m=0和直线x+2y－3=0交于P、Q两点．

(Ⅰ)求实数m的取值范围；

(Ⅱ)求以PQ为直径且过坐标原点的圆的方程．

胺碘酮（）

A.减慢动作电位0相上升速度，轻微延长动作电位时程

B.阻断钾通道，延长复极

C.轻度减慢动作电位0相上升速度，缩短动作电位时程

D.阻断慢钙通道

E.减慢动作电位0相上升速度，延长动作电位时程

The approach we propose is a system-oriented methodology for knowledge acquisition. This orientation emphasizes ongoing documentation throughout each cycle and technique applied. Program-wide documentation is suggested, both for the purpose of internal (71) and for later verification and (72) efforts: The documentation system we propose includes a central "knowledge acquisition (73) "which is (74) to reflect knowledge acquisition plans, session nodes, and domain expert participation. Specifically, (75) within the database system include knowledge acquisition forms, which document plans for, and notes from, knowledge acquisition session, domain expert file, and rule content forms.

（75）处填（）。

A．templates

B．samples

C．examples

D．temper

观察漫画《大学食堂》，你认为下列说法正确的是[ ]

A．我国人民的生活水平大幅度提高

B．国家对大学生们的生活给予了高度重视

C．是一种浪费行为，与构建社会主义和谐社会不相符合

D．有利于身体健康，是一种正确的消费观念

雪线高度受（）、（）、（）等因素制约。