若分式有意义，则2x+1≠0，
解得：x≠-12．
故答案为x≠-12．
My parents strongly _______ my going to college out of our province, because they don’t like my being far away from them.
A．submit to
B．object to
C．cater to
D．stick to
下列抗组胺药物中，具有显著的镇静和抗胆碱作用，但胃肠道副作用发生率低的典型药物为（）
A.赛庚啶
B.异丙嗪
C.美吡拉敏
D.西替利嗪
E.苯海拉明
