申请考核单位应当在《计量标准考核证书》有效期届满六个月前向主持考核的计量行政部门提出计量标准的复查考核申请。（）
A. 正确
B. 错误
A vessel proceeding along the course of a narrow channel shall keep as near to the outer limitof the channel which lies on her starboard side as it is safe and practicable.Which one of the followings does the statement express?（）.
A vessel shall proceed near the other vessel on her starboard side on the narrow channel since it is safe and practicable
B. A vessel shall avoid proceeding near the starboard outer limit of a narrow channel as long as it is safe and practicable
C. A vessel shall avoid proceeding along the channel because it is not safe and practicable
D. A vessel shall proceed near the starboard outer limit of a narrow channel to the degree in which it is safe and practicable
反核活动家：关闭这座核电站是反核事业的胜利，它表明核工业部门很迟才肯承认它们不能安全运作核电站的事实。核电站经理：它并不表明这样的事实。从非核资源可以得到便直的电力，再加上强制性的安全检查和安全维修，使继续经营这座核电站变得很不经济。因此，关闭这座核电站不是出于安全考虑，而是出于经济方面的考虑。该经理的论证是有缺陷的，因为（）
A. 它不承认电力公司现在可能相信核电站是不安全的，即使关闭这座核电站不是出于安全考虑。
B. 它把采取安全预防措施导致的费用上升看作单纯的经济因素。
C. 它忽略了这样的可能性：从中可以得到便宜电力的那些资源本身也可能有安全问题。
D. 它把关闭这座核电站对公众意味着什么的问题错误地当成关闭该电站的理由是什么的问题。
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