2014年我国劳动生产率稳步提高。全年国家全员劳动生产率为72313元/人,比上年提髙了7.0%。
参考答案:对
He said _____. [ ]
A. that I am a teacher
B.I was a teacher
C. that he is a teacher
D. he was a teacher
按JB4248-86标准,高压紧固件不允许存在任何()、()和大于1.5mm的()