靠泊操纵中，超大型船舶接近码头的速度应低于：（）A.5cm／s B.10cm／s C 发布时间：2017-09-29 15:29 │ 来源：www.tikuol.com 题型：单项选择题 问题： 靠泊操纵中，超大型船舶接近码头的速度应低于：（）A.5cm／sB.10cm／sC.15cm／sD.20cm／s
题型：单项选择题 完形填空。 It was a few days before Christmas, so when the office 1 at half past five, most of the young men and women 2 and had a party. They ate and drank, danced and sang songs, and 3 wanted to go home. But Joe had a wife 4 and lived quite 5 the city. Every few minutes he looked 6 , and at last, when it was very late, he began to leave. "Joe," shouted his friends. "Are you 7 ? Why don't you stay and 8 theparty?" "I'm not leaving," said Joe. "I'm only going down to the railway station to find out the last 9 backhome. I will be back here 10 a few minutes." ( )1. A. closed ( )2. A. left ( )3. A. somebody ( )4. A. inside ( )5. A. far away from ( )6. A. at his clock ( )7. A. coming ( )8. A. have ( )9. A. bus ( )10. A. for B. opened B. went B. nobody B. outside B. near to B. at his watch B. arriving B. had B. train B. before C. finished C. came C. all C. at home C. far away C. out of the window C. walking C. liked C. plane C. in D. stopped D. stayed D. both D. in the office D. close to D. out of the door D. leaving D. enjoy D. taxi D. after 查看答案
题型：单项选择题 肾的异常声像图表现中，错误的是（）A.肾盂结石：肾窦内有强回声光团伴后方声影B.肾盂积水：肾窦分离，强回声肾窦一部分或全部为液性暗区替代C.肾盂肿瘤：肾窦分离，内有低回声区，其后方回声无增强D.多囊肾：肾实质内单发或多发边缘光滑的液体无回声区，后方回声增强内收E.较大肾癌：肾实质内低回声肿块，边界较清，后方回声增强 查看答案