酸碱平衡的调节主要是（）
A.以呼吸系统为主
B.肾脏功能调节
C.血液缓冲系统为主
D.靠以上三者共同作用
E.靠抗利尿素与醛固酮的作用
参考答案：D
从括号中画出合适的词完成句子。
1. _____(Can, Are, Do) you like bananas?
2. _____(Do, Does, Are) your brothers like sports?
3. _____(Do, Does, Is) your mother have a sister?
4. My best friend, Jim, _____(don't, isn't, doesn't) like ice cream.
5. My mother and I _____(likes, like, want) eating oranges.
6. My parents _____(doesn't, don't, aren't) like hamburgers.
坐支是指( )。
A．开户单位从本单位库存现金限额中支付
B．开户单位从本单位库存现金限额以上支付
C．开户单位从开户银行提取现金
D．开户单位从本单位的现金收入中直接支付
