4.1 There are four C. H, alkyl groups, and so there are four C. H, CI alkyl chlorides. Each may be named by both the functional class and substitutive methods. The functional class name uses the name of the alkyl group followed by the halide as a second word. The substitutive name modifies the name of the corresponding alkane to show the location of the halogen atom

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SOLUTIONS TO TEXT PROBLEMS 19.1 (b) The four carbon atoms of crotonic acid form continuous chain. Because there is a double bond between C-2 and C-3, crotonic acid is one of the stereoisomers of 2-butenoic acid. The chem

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#include void maino char str[5]: printf(\请连续输入四个字符:Ⅶn\)

#include void maino a[4][3],iJ, float ave, b( 4]: printf(“请输入一个4行3列的整数矩阵:m”)

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#include void maino foat,2:*声明变量fl、2为单精度实型变量料

一、最佳选择题:在五个备选项中选择一个最合适的选项,并将相应序号A、B、C、D或E填入答题纸上;每题2分,共20分。 1.思想道德修养课程的教学目的主要在于解决()问题 A.世界观、人生观和价值观 B.目标意识和理想观 C.金钱观、苦乐观和幸福观 D.成才观和人生价值观 E.爱情观和友谊观