A:电源
B:开关
C:导线
D:用电器
— What is her favourite _______?
— She is always in red. Don't you know?
“1930年5月,美国国会通过了对890种商品提高关税的法案……其他资本主义国家相继仿效,到1932年4月就有76个以上的国家采取了相应措施。”这实质上反映了( )
Please these things to your brother.He is at school