开发商收到承包商递交的竣工结算报告及结算报告资料后通常要在15日内予以核实,给予确认或者提出修改意见。()
参考答案:错
I hope there will be ______ cars and ______ pollution in the future, thus people will live longer. [ ]
A. more, less
B. fewer, less
C. fewer, more
D. fewer, fewer
如果进程P对信号量S执行P操作,则信号量S的值应()。
A.加1
B.减1
C.等于0
D.小于0