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【单选题】
遇险通信遇险通信频率应如何确定？_____A.
根据遇险呼叫电文的后续通信方式确定随后通信方式；
B.
选择与DSC呼叫频率同波段的遇险通信专用频率；
C.
A+C
D.
可随意选择。
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】下列有关流感预防的表述错误的是()
A.
尽早服用抗生素可有效预防流感
B.
保持良好的个人卫生习惯也可预防流感
C.
接种流感疫苗是预防流感最有效的手段
D.
药物预防不能代替疫苗接种
【简答题】She needs to (finish) her assignment before tomorrow.A. finish
【简答题】简述膳食蛋白质互补原则。
【简答题】Two days is not enough for him to finish the work. He needs __________ day. A: the other B; a third C; other
【单选题】What does Carol Brinkley say about the question and answer session?
A.
She felt that Mr Hammond performed well in difficult circumstances.
B.
She learnt more than she expected about the company's goals.
C.
She would have liked to hear more on some subjects.
D.
She changed her attitude towards Mr Hammond.
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