100YⅡ-1502A型离心泵中,数字100代表()。
A.吸入口直径
B.泵用材料代号
C.设计单级扬程
D.级数
参考答案:A
在售票员开窗售票前,由客运值班员给售票员配备上班所需备用金,并在《()》和《值班员交接本》记录。
She's having a lot of trouble with the new computer, but she doesn't know whom to________. [ ]
A. turn to
B. look for
C. deal with
D. talk about