皮皮学，免费搜题
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【单选题】
关于能见度不良时应按要求鸣放一长声或两长声声号的机动船, 下列说法正确的是:1包括从事顶推作业的拖轮;2包括从事旁拖作业的拖轮;3包括从事拖带作业的拖轮;4包括牢固连接的顶推组合体A.
③④
B.
①③
C.
②④
D.
②
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皮皮学刷刷变学霸
举一反三
【单选题】What must the explorers be, even though they have modern equipment and techniques?
A.
Brave and tough.
B.
Stubborn and arrogant.
C.
Well-liked and humorous.
D.
Stout and smart.
【简答题】银河系又称“本星系”,太阳是银河系中的一颗____星,银河系的银盘有四条巨大的旋臂,太阳系就位于其中的____臂上,地球是太阳系中的一颗____星。
【简答题】银河系又称“本星系”,太阳是银河系中的一颗__星,地球是太阳系中的一颗__星。
【单选题】The revelation of his past ledto his resignation.
A.
imagination
B.
confirmation
C.
recall
D.
disclosure 请为划线部分确定1个意义最为接近的选项
【单选题】Even before modern notions of friction, it was known that greased surfaces move over one another more easily than dry ones.
A.
concepts
B.
tricks
C.
benefits
D.
techniques
【单选题】Congratulations on the opening of your new branch of the Revelation Motor Company.
A.
We have always appreciated doing business with you.
B.
Best wishes for happiness and success to all of you at Revelation.
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