23-14-14,
=23-(14+14),(运用了减法的性质)
=23-12,
=16.
故答案为:×.
. There were no tickets _____ for Friday's performance.
A.preferable
B.possible
C.considerable
D.available
工程保险属于( )风险的一种典型。
A.财务转移
B.经济转移
C.非财物转移
D.资产转移