化学仪表受()环境影响。
A、温度;
B、压力;
C、湿度;
D、电磁场。
参考答案:A, C, D
The boss exploded with anger and asked him to leave in no time; ,he was fired
A.on the contrary
B.on the whole
C.in other words
D.in return
NBDP的码元中,“传号”对应的音频为()。
A、1415Hz
B、1500Hz
C、1785Hz
D、1615Hz