Which of the following statements about transmitting distress messages by radiotelephone is INCORRECT?()
A. If no answer is received on the designated distress frequencies,repeat the distress call on any frequency available
B. Channel 16 (156.8) may be used for distress messages
C. It is advisable to follow a distress message on 2182 kHz by two dashes of 10 to 15 seconds duration
Distress messages should first be transmitted on 2182 kHz
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可修复废品是指经过修理可以使用,而且所花费的修复费用在经济上合算的废品。
A. 正确
B. 错误
意义识记的效果不论在全面性、准确性、巩固性或速度方面都优于机械识记.机械识记没有什么价值。()
A. 正确
B. 错误
We are told that it is() we are born that decides our nationality.
A. the country
B. anywhere
C. where
D. somewhere
一般说来,以下哪一类能力被认为不属智力范畴?()
A. 人际交往能力
B. 学习能力
C. 言语能力
D. 运算能力