皮革、人造革具有吸收共振频率附近的()声能。
A.低分贝
B.反射
C.高分贝
D.入射
参考答案:D
内部故障成本一般包括()。
A.废品损失
B.返工费
C.复检和筛选费
D.停工损失
E.不合格晶处理费
The carrier is entitled to carry the goods on deck only if such carriage is in accordance()an agreement with the shipper or with the usage of the particular trade or is required by statutory rules or regulations.
A.to
B.in
C.on
D.with