卡车轮胎附近用于减震的弹簧是下列哪一种（）
A.环行弹簧
B.盘簧
C.板簧
D.片簧
参考答案：C
High proficiency in English achieved unless you a lot of readingand listening in the language.[ ]
A. aren't, will do
B. won't be, do
C. aren't do
D. won't be, will do
在EAN—13条码中，我国的国家代理是960。
