—What color is your backpack?
—_____. [ ]
A It's a red
B It's red
C It's one
答案:B
()温度计,测量温度范围为0~1600℃,常用于液体、气体、蒸汽的中、高温测量,能远距离传送。
A.膨胀式
B.压力式
C.电阻
D.热电偶
简答卸货代理人须负责承担的工作。