船长10m的船舶搁浅时,夜间应显示的号灯为__。 A.
锚灯、两盏垂直环照红灯 B.
锚灯 C.
锚灯、甲板灯,两盏垂直环照红灯 D.
锚灯、甲板灯

单项选择题Read the following sentence and Identify the function of it in the introduction. Some mathematical models or design tools have been proposed for thispurpose. () A、Explaining the significance or necessity of the research B、Reviewingthe existing literature relevant to the present study C、Identifyinga gap in the existing literature D、Announcing the purpose focus ofthe study E、Outlining the paper structure

多项选择题把下列短语或句子放在正确的位置。 ______1______ ____2______， ______________________________________________________ _________________________3________________________________ __________________________________________________________ ________________________________. ______________________________________________________ ________________________4_________________________________ __________________________________________________________ __________________________________________________________ ____________________________________________. ____5______, Pierre Simon A. You have excellent managerial qualities—I still remember all the second-hand book sales that you organized when you were only 10 or 11 years old. I’m glad that the management at Sony recognizes your abilities. Best wishes for your continued success. B. Dear Jerry, C. Sincerely yours, D. May 7th, 2015 E. I just learnt from your mother about your promotion to area manager at Sony Corporation. My congratulations on your achievement. I always know that you had the intelligence and drive (干劲) to go far, and you keep proving me right time and again.