The radiotelegraph alarm signal is().
A. SOS sent three times
B. ten one-second dashes with a four-second interval between them
C. twelve four-second dashes with a one-second interval between them
D. twelve one-second dashes with a short interval between them
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料采购资金管理办法包括()管理法。
A. 预算消耗
B. 品种采购量
C. 采购金额
D. 费用指标
下列哪项不属于霍奇金病的症状()
A. 发热及贫血
B. 体重减轻及盗汗
C. 饮酒后淋巴结疼痛
D. 夜尿增多
E. 皮肤瘙痒