当天线垂直于地面时，天线辐射电磁波的电场也垂直于地平面，对地平面来说就叫（）。
A.水平极化波
B.垂直极化波
C.椭圆极化波
参考答案：B
This soccer team lost the game in the group match, for which they were seriously punished by the FIFA.
A. in common B. as usual C. by accident D. on purpose
