民航地面气象观测中,风向以()为等级单位记录。
参考答案:10°
Words _________ me when I wanted to express my thanks to him. I just held his hands
firmly, choking.
A.left
B.encouraged
C.reminded
D.failed
甲、乙两个科室各有4名职员,且都是男女各半。现从两个科室中选出4人参加培训,要求女职员比重不得低于一半,且每个科室至少选1人。问有多少种不同的选法( )
A.67B.63C.53D.51