搜题请搜索小程序“爱下问搜题”
问题 选择题

多边形的每个内角都等于150°，则从此多边形的一个顶点出发可作的对角线共有（　　）

A．8条

B．9条

C．10条

D．11条

答案

∵多边形的每个内角都等于150°，

∴多边形的每个外角都等于180°-150°=30°，

∴边数n=360°÷30°=12，

∴对角线条数=12-3=9．

故选B．

判断题

目前，我国正在进行教育体制和劳动人事制度的改革，要逐步实行“先就业，后培训”的新型制度。
查看答案
单项选择题

An embedded operating system is the (71) program that manages all the other programs in an embedded device after initial load of programs by a(an) (72). It normally guarantees a certain capability within a specified (73) size and (74) constraint as well as with application programs. It also normally has small foot print including initial boot loader, OS kernel, required device drivers, (75) for the user data and so forth. It has very-likely structure of a normal operating system however mainly differentiated by some factors such as type of pre-installed device, functional limits, taking designed job only.

A．time

B．format

C．controller

D．packet
查看答案