华为DRRU268i-a的接收灵敏度是()dbm
A.-110
B.-114
C.-118
D.-112
参考答案:B
—Do you think Jim can manage it by himself?
—________. He is expert at dealing with such a matter.
A.Take care
B.I'm not sure
C.Don't worry
D.Don't mention it
膨胀压缩机仪表气是温热的干燥气体,压力参数:()
A、最小压力300KpAg,最大压力800KpAg
B、最小压力300KpAg,最大压力1000KpAg
C、最小压力500KpAg,最大压力800KpAg
D、最小压力200KpAg,最大压力500KpAg