用压缩空气枪吹洗工件时,应佩戴的防护用具是()
A.耳罩
B.护目镜
C.头盔
D.防尘面具
参考答案:B, D
— Will Liu Ying come to school today?
— I don't know. But I also want to know . [ ]
A. that she will come to school today
B. whether will she come to school today
C. how will she come to school today
D. if she will come to school today
发展社会主义市场经济,要兼顾效率与公平。在下列选项中,体现再分配调节、实现社会公平的举措包括()
①加强国有企业高管薪酬管理
②建立科技成果入股、岗位分红权激励办法
③加大力度促进保障性住房供给
④提高城乡居民最低生活保障标准
A.①②
B.①④
C.②③
D.③④