题目内容

为什么稀释浓硫酸时不准将水往浓硫酸里倒?

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以下不属于消防控制室值班人员职责的是()。

A. 负责对各种控制设备的监视和运用
B. 熟悉本系统所采用的消防设施、功能,熟练掌握操作技术
C. 宣传贯彻消防法规,遵守消防安全管理制度
D. 组织人员进行初起火灾的扑救

The Greek ship drifted and struck the portside of a Chinese ship,which()the bulwalk and Stanchions.

A. caused damage to
B. had collision with
C. was damaging
D. was causing damage to

从左向右投影,在侧投影面上所得的图形为()视图。

A. 正
B. 侧
C. 左
D. 右

Turbulence in a diesel engine cylinder is of major importance in providing ().

A. proper fuel metering
B. complete fuel/air mixing
C. minimal fuel penetration
D. proper fuel timing

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