化简a-b-(a+b)的结果是( )
A.0
B.2b
C.-2b
D.b
原式=a-b-a-b=-2b.
故选C.
However,at times this balance in nature is__,resulting in anumber of possibly unforeseen effects.
A.troubled
B.disturbed
C.confused
D.puzzled
下列对开户单位现金收入的处理中,正确的是( )。
A.由单位领导人妥善保管B.直接用于现金支付C.当日送存开户银行D.部分存入银行,部分放入单位保险箱