单项选择题

项目各工作逻辑关系中的“完成到开始关系”是指某一工作完成后或完成一定时间后，其紧后工作才开始的顺序关系。

A．对
B．错

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单项选择题

南非是世界上最早发现钻石的国家
A、正确
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单项选择题

Which one of the following is the correct order of making Chinese silk?
(1) Twig frames for the silkworms are prepared.
(2) The cocoons are weighed.
(3) The silkworms and mulberry leaves are placed on trays.
(4) The silk is woven using a loom.
(5) The cocoons are soaked and the silk is wound on spools.
A、(2)(3)(1)(5)(4)
B、(3)(2)(1)(5)(4)
C、(3)(1)(5)(2)(4)
D、(3)(1)(2)(5)(4)