危险性质货物标签分为（）和操作标签。
A.向上标签
B.远离热源
C.爆炸物品签
D.危险性标签
参考答案：D
He complained that this was the third time he _________ of the changes of the meeting.
A．is informed
B．was informed
C．has been informed
D．had been informed
气温逆增多发生在
A．天气晴朗的日子B． * * 的白天C．夏夜D．秋冬之交的白天E．冬夜
