现行使用的金属拉伸试验方法的国家标准号为()。
A.GB228-87
B.GB228-76
C.GB6397-876
参考答案:A
We were anxious about you.You home without us.
A.shouldn’t leave; tell
B.mustn’t leave; tell
C.shouldn’t have left; telling
D.can’t have left; telling
下列句子中没有词类活用的一项是( )(3分)
A.善善恶恶,贤贤贱不肖
B.父老苦秦苛法久矣
C.管仲既任政相齐
D.每一令出,平伐其功