机载雷达包括火控雷达、()、轰炸雷达、预警和()、导航雷达、侦查和()、气象和航行雷达等。
参考答案:截击雷达;指挥雷达;勘探雷达
The more civilized man has become,______he is limited by the disadvantage of his environment.
A.and the more
B.the less
C.the lest
D.and the less
压力容器一般都检查()。
A、容器外壁
B、容器内壁
C、焊缝
D、容器外壁和内壁