截割过程中要随时注意个部件的声音和温度,一般液压油温度不超过().
参考答案:70℃
It's too _____ outside.You had better wear your coat.[ ]
A. hot
B. cool
C. cold
“随附单据”栏应填( )。
A.发票
B.装箱单
C.发票、装箱单
D.此栏不填