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【单选题】
细胞的生活靠的是细胞各种结构的分工协作．请你判断下列结构名词与相应的功能对应正确的是（ ）A.
细胞核----选择和控制物质进出
B.
线粒体----使光能变成化学能
C.
细胞膜----遗传信息DNA的贮存库
D.
细胞壁----保护和支持细胞正常形态
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【简答题】A．More than 70 million. B．More than 1,000 million. C．More than 2,000 million. D．More than 6,000 million.
【单选题】An is an officer in the army or navy who helps a more senior officer
A.
excise officer
B.
marshal
C.
aide-de-camp
【单选题】The officer in charge of the engineering ______ the watch to the reliving officer if there is reason to believe that the latter is obviously not capable of carrying out the watch-keeping duties effect...
A.
shall take over
B.
shall not take over
C.
shall hand over
D.
shall not hand over
【单选题】There is one cabin for the Pilot and another one for the Chief Officer.Between them is the officer`s mess room
A.
The Chief Officer`s cabin is next to the Pilot`s
B.
The Chief Officer`s cabin is next to the mess-room
C.
The Chief Officer`s cabin is below the Pilot`s
D.
The Chief Officer`s cabin is below the mess-room
【简答题】A．More than 8,000 million. B．More than 6,000 million. C．More than 2,000 million D．More than 1,000 million.
【单选题】There is one cabin for the Chief Officer and another one for the Pilot.Between them is the officer`s mess room.
A.
The Chief Officer`s cabin is opposite the mess room
B.
The Chief Officer`s cabin is opposite the Pilot`s
C.
The Chief Officer`s cabin is next to thr mess room
D.
The Chief Officer`s cabin is next to the Pilot`s
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