家庭中大米去除黄曲霉毒素的常用方法是()
A.加水搓洗
B.加碱
C.加盐
D.加醋
E.用高压锅煮饭
参考答案:A, B, E
Just in front of our house__________ with a history of 1000 years. [ ]
A. does a tall tree stand
B. stands a tall tree
C. a tall tree is standing
D. a tall tree stands
在批量加工垂直孔系时,其检验方法一般应用()检验。
A.组合检具
B.检验心轴、直角尺配合
C.千分表