在57题图中,T形杆在该位置对O轴的动量矩为()。
A.A
B.B
C.C
D.D
参考答案:C
To make room for teachers’ correction, the students had better write their composition _____.
A.every two line
B.every second lines
C.every the second line
D.every other line
以下可以作为LTE网络覆盖评估指标有()
A.RSRP
B.SINR
C.Ec/Io
D.RSRQ