第六章习题 1)苯酚(CHOH)(A)和对甲酚(CH4(CH2)OH)(B)的饱和蒸汽

一、有关概念 1、通信:CPU与外界的信息交换。 2、串行通信的优点:节省传输线,利于远程通信;

1 a) Buy IBX stock in Tokyo and simultaneously sell them in NY, and your arbitrage profit is $2 per share. b)The prices will converge. c)Instead of the prices becoming exactly equal, there can remain 1%% discrepancy between

#include stdio. h\ #include\math. h' void maino c, P, xI, X2, real, imag printf(“请输入一元二次方程的三个系数:”); scanf(\%f%f%f\, &a, &b, &c)

第四章信息与信息化管理 一、单项选择题 1、()属于信息。 A.文字B.图形C.曲线D.图细 2、信息评估的关键在于() A.确认信息质量B.评估信息的收益 C.估计信息获取成本D.进行成本一收益分析 3、系统分析的目的在于() A.确定是否存在一个能被信息系统处理的机会 B.产生一个运行系统 C.考察系统的技术能力 D.确定信息系统的功能要求

Static stability is all about the initial tendency of a body to return to its equilibrium state after being disturbed To have a statically stable equilibrium point, the vehicle must develop a restoring force/ moment to bring it back to the eq. condition Later on we will also deal with dynamic stability, which is concerned with the time history of the motion after the disturbance

(1)(2)B(3)D (4)D (5)B 6)b(7) (8)B (9)D(10)D (11)(12)B(13)B(14)C(15)A

H ydrocarbons that contain carbon-carbon triple bond are called alkynes. Non- cyclic alkynes have the molecular formula C, H2n-2. Acetylene (HCCH) is th simplest alkyne. We call compounds that have their triple bond at the end of a carbon chain(RC=CH) monosubstituted, or terminal, alkynes. Disubstituted alkynes (RCCR') are said to have internal triple bonds. You will see in this chapter that a car- bon-carbon triple bond is a functional group, reacting with many of the same reagents

SOLUTIONS TO TEXT PROBLEMS 2.1 A carbonyl group is=. Of the two carbonyl functions in prostaglandin E one belongs to the ketone family, the other to the carboxylic acids. Ketone OH Carboxylic acid functional group

Oxirane 2-(Chloromethyl)oxirane This compound is more commonly known as epichlorohydrin. (c)Epoxides may be named by adding the prefix epoxy to the IUPAC name of a parent compound specifying by number both atoms to which the oxygen is attached