旅客不能按票面指定的日期、车次乘车时，在不延长客票有效期的前提下，可以在任何售票点办理提前或改晚乘车签证手续。（部竞赛题）
查看答案
If the gyrocompass error is east，what describes the error and the correction to be made to gyrocompass headings to obtain true headings?（）.
A. The readings are too low (small numerically) and the amount of the error must be added to the compass to obtain true
B. The readings are too low and the amount of the error must be subtracted from the compass to obtain true
C. The readings are too high (large numerically) and the amount of the error must be added to the compass to obtain true
D. The readings are too high and the amount of the error must be subtracted from the compass to obtain true
市场调查是制定具体营销决策的重要环节和前提，企业的每一项决策都必须先进行科学的市场调查，并根据调查结果来决策。
A. 正确
B. 错误
贷款行可以接受2000年（含）以后工行代理发行的凭证式国债以及工行通过记账式国债柜台交易进行买卖的记账式国债的质押。
A. 正确
B. 错误
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