第30题: [单项选择]挤压综合征主要是指伤后出现( ) A. 呼吸困难 B. 休克 C. 昏迷 D. 肾衰竭 E. 心力衰竭 参考答案:D
第31题: [单项选择]Marie could hardly recognize the office she went into as________. A. she had been there only once B. Mr. Smith was not in the office C. nobody was doing any work D. the office had a new appearance 参考答案:D 答案解析:[解析]由第三段中“In fact,it hardly looked like an office at all.The employees were just standing around cha
第32题: [单项选择]GSM数字移动通讯系统中信道的数据()发送和接收. A. 按时间顺序(TDMA. B. B.按频率大小(FDM C. C.按扩频编码(CDM D. D.按空间顺序(SDM 参考答案:A