若a＋b＝－1，则a2＋b2＋2ab的值为（）A．－1B．1C．2D．－2

若a＋b＝－1，则a²＋b²＋2ab的值为（）

A．－1

B．1

C．2

D．－2

答案

B解析:
略

相关题目

—What's your sister doing vacation ? —

—What's your sister doing vacation ? —She's _________ . A. on, go camping B. for, going camping C. for, g

白居易《观刈麦》一诗中，反映当时赋税繁重，人民生活困

白居易《观刈麦》一诗中，反映当时赋税繁重，人民生活困苦不堪的语句是：，

Elizabeth Freeman was born about 1742 to African American parents who were

Elizabeth Freeman was born about 1742 to African American parents who were slaves. At the age of six months she was acquired, along with her sister, by John Ashley, a wealthy Massachusetts slav

At first, they resisted ________，but all their resistance________the police

At first, they resisted ________，but all their resistance________the police was in vain. A．leaving；to B．leaving；from C．to leave；to D

设某氨水的pH=X，某盐酸的pH=Y，已知X＋Y=14，且X > 11将上述

设某氨水的pH=X，某盐酸的pH=Y，已知X＋Y=14，且X > 11将上述两溶液分别取等体积充分混合，混合液中各离子的浓度由大到小的顺序是（

You'd better ____ in an emergency. A. keep still B. keep

You'd better ____ in an emergency. A. keep still B. keep calm C. keep silent D. keep quiet

---Let’s ____. ---- Sounds good. I like thrillers. A. play sports �

---Let’s ____. ---- Sounds good. I like thrillers. A. play sports B. go shopping C. go to a movie D. have dinner

在梭伦改革中，使广大平民成为享有自由权利公民的措施是

在梭伦改革中，使广大平民成为享有自由权利公民的措施是：（） A.颁布“解负令” B.确立财产等级制度 C.设立陪审法庭

若a＋b＝－1，则a2＋b2＋2ab的值为（ ）A．－1B．1C．2D．－2

答案

相关题目

最新题目

若a＋b＝－1，则a2＋b2＋2ab的值为（）A．－1B．1C．2D．－2