低碳钢、中碳钢、高碳钢都是()。
A.碳素钢
B.合金钢
C.轴承钢
D.不锈钢
参考答案:A
我国《水法》规定:“兴建水利工程或其他建设项目,对原有灌溉用水、洪水水源或者航道水量有不利影响的,建设单位应当采取补救措施或者予以补偿”。这一规定不属于下列哪一项( )
A.命令性规则
B.强行性规则
C.确定性规则
D.权义规则
My brother suggested he and I be taken to an amusement park this weekend, and we were glad to know that our busy parents did not ___ to the plan.
A.object
B.refer
C.listen
D.agree