配套习题-不等式基本性质的应用 -【青果学院】

本课配套习题挑战模式1/5

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单选题

难度系数：

1.已知ab＜0，ab²＞0，且a+b＜0，则下列四个答案正确的是（　　）

A: ＞-1

B: ＜-1

C: ＞1

D:0＜＜1

提示1：IOmcgOW+l+WIsGHvvIxi55qE56ym5Y+35ZKM57ud5a+55YC855qE5q+U6L6D77yM6K6pYemZpOS7pWLljbPlj6/lvpfliLDnm7jlhbPkuI3nrYnlvI8u
答案：QQ==
6Kej77ya4oi1YWLvvJww77yMPGJyPuKItGHvvIxi5byC5Y+377yMPGJyPuKItWFiPHN1cD4yPC9zdXA+77yeMO+8jDxicj7iiLRh5LiOYjxzdXA+Mjwvc3VwPuWQjOWPt++8jDxicj7lj4jiiLViPHN1cD4yPC9zdXA+77yeMO+8jDxicj7iiLRh77yeMCBi77ycMO+8jDxicj7iiLRhK2LvvJww77yMPGJyPuKItWLvvJww77yMPGJyPuKItDxpbWcgd2lkdGg9OSBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8wMC8zQi9yQkFDRkZOc2JyNlRWVGtXQUFBQlVxSlVDOXcyMDQucG5nIj7vvJ4tMe+8jDxicj7mlYXpgIlBLiA=

本课配套习题挑战模式2/5

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单选题

难度系数：

2.下列不等式中变形正确的是（　　）

A: 由x＜y，得xc＜yc

B: 由x＞y，c≠0，得-＜−

C: 由x＞y，得xc²≥yc²

D: 由x＜y，得（1000-c）x＜（1001+c）y

提示1：IOagueaNruS4jeetieW8j+eahOWfuuacrOaAp+i0qOi/m+ihjOWIpOaWrS4=
答案：Qw==
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

本课配套习题挑战模式3/5

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单选题

难度系数：

3.有下列四个命题：①若a＞b，则a+1＞b+1；②若a＞b，则a-1＞b-1；③若a＞b，则-2a＜-2b；④若a＞b，则2a＜2b. 其中正确的有（　　）个.

A: 1

B: 2

C: 3

D: 4

提示1：IOagueaNruS4jeetieW8j+eahOaAp+i0qOWIhuaekOWIpOaWrS4=
答案：Qw==
6Kej77ya4pGg44CB6IulYe+8nmLvvIzmoLnmja7kuI3nrYnlvI/nmoTmgKfotKgx77yMYSsx77yeYisx5q2j56Gu77ybPGJyPuKRoeOAgeiLpWHvvJ5i77yM5qC55o2u5LiN562J5byP55qE5oCn6LSoMe+8jGEtMe+8nmItMeato+ehru+8mzxicj7ikaLjgIHoi6Vh77yeYu+8jOagueaNruS4jeetieW8j+eahOaAp+i0qDPvvIwtMmHvvJwtMmLmraPnoa7vvJs8YnI+4pGj44CB6IulYe+8nmLvvIzmoLnmja7kuI3nrYnlvI/nmoTmgKfotKgx77yMMmHvvJ4yYu+8jOaVhemUmeivry4gPGJyPuWImeato+ehrueahOaciTPkuKrvvIzmlYXpgIlDLiA=

本课配套习题挑战模式4/5

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单选题

难度系数：

4.已知a＞b，若c是任意实数，则下列不等式中总是成立的是（　　）

A: a+c＜b+c

B: a-c＞b-c

C: ac＜bc

D: ac＞bc

提示1：IOagueaNruS4jeetieW8j+eahOaAp+i0qO+8jOWIhuWIq+WwhuS4qumAiemhueWIhuaekOaxguino+WNs+WPr+axguW+l+etlOahiO+8m+azqOaEj+aOkumZpOazleWcqOino+mAieaLqemimOS4reeahOW6lOeUqC4=
答案：Qg==
6Kej77yaQeOAgeKItWHvvJ5i77yMY+aYr+S7u+aEj+WunuaVsO+8jOKItGErY++8nmIrY++8jOaVheacrOmAiemhuemUmeivr++8mzxicj5C44CB4oi1Ye+8nmLvvIxj5piv5Lu75oSP5a6e5pWw77yM4oi0YS1j77yeYi1j77yM5pWF5pys6YCJ6aG55q2j56Gu77ybPGJyPkPjgIHlvZNh77yeYu+8jGPvvJww5pe277yMYWPvvJxiY++8jOiAjOatpOmimGPmmK/ku7vmhI/lrp7mlbDvvIzmlYXmnKzpgInpobnplJnor6/vvJs8YnI+ROOAgeW9k2HvvJ5i77yMY++8njDml7bvvIxhY++8nmJj77yM6ICM5q2k6aKYY+aYr+S7u+aEj+WunuaVsO+8jOaVheacrOmAiemhuemUmeivry4gPGJyPuaVhemAiUIuIA==

本课配套习题挑战模式5/5

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单选题

难度系数：

5.如果a＞b，c＜0，那么下列不等式成立的是（　　）

A: a+c＞b+c

B: c-a＞c-b

C: ac＞bc

D: ＞

提示1：IOagueaNruS4jeetieW8j+eahOWfuuacrOaAp+i0qO+8mu+8iDHvvInkuI3nrYnlvI/kuKTovrnliqDvvIjmiJblh4/vvInlkIzkuIDkuKrmlbDvvIjmiJblvI/lrZDvvInvvIzkuI3nrYnlj7fnmoTmlrnlkJHkuI3lj5guIO+8iDLvvInkuI3nrYnlvI/kuKTovrnkuZjvvIjmiJbpmaTku6XvvInlkIzkuIDkuKrmraPmlbDvvIzkuI3nrYnlj7fnmoTmlrnlkJHkuI3lj5guIO+8iDPvvInkuI3nrYnlvI/kuKTovrnkuZjvvIjmiJbpmaTku6XvvInlkIzkuIDkuKrotJ/mlbDvvIzkuI3nrYnlj7fnmoTmlrnlkJHmlLnlj5guIOS4gOS4quS4quetm+mAieWNs+WPr+W+l+WIsOetlOahiC4=
答案：QQ==
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本课配套习题挑战模式1/5

本课配套习题挑战模式2/5

本课配套习题挑战模式3/5

本课配套习题挑战模式4/5

本课配套习题挑战模式5/5

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