MV SUDAN/MEAN AT 0200UTC IN POSITION 40.44N 141.52E PASSED A DERELICT ABOUT 40 TONS HALF SUBMERGED AND IS DRIFTING. This cable says that she met with possibly（）. ["a floating wreck","a survivor at sea","a man who had fallen overboard","a drilling rig"]
You hear on the radiotelephone the word SECURITE spoken three times. This indicates that（）. ["a message about the safety of navigation will follow","a message of an urgent nature about the safety of a ship will follow","the sender is in distress and requests immediate assistance","you should secure your radiotelephone"]
以下属于资本*市场中介机构的是（）。 ["投资银行","会计师事务所","信用评级机构","证券交易所"]
SolidWorks草图中的尺寸没有完全定义的情况下一定不能够创建特征。
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