采用小的焊接热输入,能减小焊接变形,也能减小焊接应力。( )
参考答案:对
While the examination is being carried out, ______ shall be present and responsible for moving the goods, opening and restoring the packing.
A.the consignee of the import goods and the consignor of the export goods
B.Customs officer
C.harbour officer
D.the owner of the ship
工业革命首先开始于
A.英国
B.法国
C.美国
D.德国