设备上接管的外伸长度应考虑（）
A.所设置的保温层厚度
B.便于安装螺栓
C.便于安装加固结构
D.A和B
参考答案：D
苹果贮藏久了，组织内部会发生：（）
A.抗氰呼吸
B.酒精发酵
C.糖酵解
“The goods are in nude.” Means______
A．The goods are packed with wooden boxB．The goods are packed with iron boxC．No basket is used for the goodsD．No package is used for the goods
