[单项选择] {$mediaurl}What does the woman imply about the man A. He should have talked to her sooner. B. He has to set his priorities. C. He is a talented musician. D. He has performed well as a waiter.
第2题: [单项选择]下列关于路由信息协议RIP 的描述中,错误的是 A. 路由刷新报文主要内容是由若干(V、D)组成的表 B. 矢量V 标识该路由器可以到达的目的网络或目的主机的跳数 C. 路由器在接收到(V、D)报文后按照最短路径原则更新路由表 D. 要求路由器周期性地向外发送路由刷新报文 参考答案:B
第10题: [单项选择]显示胆囊、胆总管结石最好的脉冲序列是() A. SE序列横断位T1加权 B. FSE序列横断位T2加权 C. MRCP水成像 D. FSPGR梯度回波 E. 回波平面成像(EPI) 参考答案:C 答案解析:胆管结石是胆管系统发病率最高的疾病。以往的诊断主要依靠经皮经肝内胆管穿刺造影、经内镜逆行胰胆管造影术及B超,但前两种检查创伤大,患者痛苦,且存在一定风险,而B超由于肠道内空气的影响对十二指肠乳头显示较
第23题: [单项选择]Something must have happened on their way here. Or they ______ by now. A. should have arrived B. should arrive C. would have arrived D. would arrive 参考答案:C 答案解析:[解析] “must+ have+ 过去分词”表示对过去事实的推测。例如:The road is wet. It must have rained last night. (路是湿的,昨天晚上肯定下雨