[问答题] 简述出血对机体的影响。

On no account （）proceed without pilot in this water area． ["the vessel","shall not vessel","the vessel should","should vessel"] The hydraulic （） is used to control engine speed. ["motor","pump","governor","capsta"] 通常小区导频覆盖门限是大于（），要保证信号可靠解调的最小导频覆盖门限一般需大于（）。 ["-10dB；-8dB","-12dB；-10dB","-14dB；-12dB","-15dB；-13dB"] 痕量元素 客户需要购买200美元现钞，根据交通银行的即时牌价：现汇买入价653.47、现钞买入价648.23、现汇卖出价656.07，需要付出（）人民币。 ["A.1306.94","B.1296.46","C.1312.14","D.以上都不正确"] 简述出血对机体的影响。