若x和y代表整型数，以下表达式中不能正确表示数学关系|x-y|

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abs(x-＜10 x-y＞-10&&x-y＜10 (x-＜-10 !(y-＞10 (x-*(x-＜100

abs(x-y)<10 x-y>-10&& x-y<10 !(x-y)<-10 !(y-x)>10 (x-y)*(x-y)<100

abs(x-y)＜10 x-y＞-10&&x-y＜10 !(x-y)＜-10 !(y-x)＞10 (x-y)*(x-y)＜100

若a、b和c都是整型变量，则a + b-c是整型表达式若x和y都是布尔型变量，则x && y是布尔型表达式若x和y都是整型变量，则x＞1，‖y＜1是整型表达式若a是布尔型变量，b和c都是整型变量，则a&&(b +c)＞2是布尔型表达式

abs(x-＜10 x-y＞-10&&x-y＜10 !(x-＜-10 !(y-＞10 (x-*(x-＜100

abs(x-y)<10 x-y>-10&& x-y<10 @(x-y)<-10 !(y-x)>10 (x-y)*(x-y)<100

abs(x-y)＜10 x-y＞-10&&x-y＜10 !(x-y)＜-10‖!(y-x)＞10 (x-y)*(x-y)＜100

x y x y x & y xy

若a、b和c都是整型变量，则a + b-c是整型表达式若x和y都是布尔型变量，则x && y是布尔型表达式若x和y都是整型变量，则x＞1，‖y＜1是整型表达式若a是布尔型变量，b和c都是整型变量，则a&&(b + ＞2是布尔型表达式

x=3 Or x=4 2＜x＜5 x＜5 And x＞2 Not(x＜=2) And Not(x＞=5)

abs(x-＜10 x-y＞-10&&x-y＜10 !(x-＜-10｜｜!(y-＞10 (x-*(x-＜100

abs(x-y)＜10 x-y＞ -10&&x-y＜10 ! (x-y) ＜ -10 ‖ ! (y-x) ＞10 (x-y) * (x-y) ＜100

abs(x-＜10 x-y＞-10&&x-y＜10 !(x-＜-10‖!(y-＞10 (x-*(x-＜100

abs(x-y)＜10 x-y＞-10&&x-y＜10 !(x-y)＜=10｜｜!(y-x)＞10 (x-y)*(x-y)＜100

abs(x-y)＜10 x-y＞-10＆＆x-y＜10 !(x-y)＜-10 !(y-x)＞10 (x-y)*(x-y)＜100