借方登记本期减少的账户有（）。
A.资产类账户
B.负债类账户
C.收入类账户
D.所有者权益类账户
参考答案：B, C, D
--- How many concerts ____ up to now?
--- About 25. Last night we ____ our biggest one.
A．did you play, have had
B．have you played, had
C．had you played, have had
D．do you play, have had
心理学的研究角度不包括（）。
A.神经生物学的研究
B.社会学的研究
C.行为的研究
D.认知的研究
E.心理分析的研究
