【简答题】噪声是电位器的一个重要参数,电位器的噪声包括( )、( )和( )三种。
【简答题】Which company _____ Liz work for now?
【单选题】Which of the following is NOT a company in the energy sector?
【简答题】在混凝上中掺用减水剂,可以在配合比不变的条件下增大拌合物的________;在保持流动性及水灰比不变的条件下,可以减少________和________;在保持流动性及水泥用量不变的条件下,可以减少用水量,从而降低________,提高强度。
【单选题】I will be in ________ of this company in five years.
【单选题】He _________ a manager with a big company.