题目内容

焊条由焊心和药皮组成。焊条对焊缝的质量影响不大。

A. 正确
B. 错误

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《矿山安全法》是矿山()的法律依据。

A. 设计
B. 安全生产
C. 建设
D. 构思

办理丰收贷记卡,必要时发卡机构可通过调查审查手段获得相应证明材料。

A. 正确
B. 错误

根据《就业促进法》有关规定,就业困难人员是指因什么原因难以实现就业,以及连续失业一定时间仍未能实现就业的人员()?

A. 身体状况
B. 技能水平
C. 家庭因素
D. 个人意愿

Which two statemets are true?()

A. DPT/RPR uses a bi-directional ring consisting of two symmetric counter rotating fibre rings.
B. DPT/RPR is defined in the IEEE 802.17 standard and it uses Token Bucket system to avoid collisions on the fiber.
C. In DPT/RPR rings, data packets can be sent in one direction (downstream) and the corresponding control packets in the opposite direction (upstream),thus using both fibres concurrently to maximise bandwidth.
DPT/RPR can be deployed in the Core of the SP networks where point-to-point POS links are used tomake best use of the Bandwidth.

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