无论是向左或向右转舵,浮动杆追随机构的储能弹簧()。A.始终受压 B.始终受拉 C.

题型:单项选择题

问题:

无论是向左或向右转舵,浮动杆追随机构的储能弹簧()。

A.始终受压

B.始终受拉

C.偏转舵时受压,回舵时受拉

D.偏转舵时受拉,回舵时受压

考点:海船船员考试船舶辅机(大管轮)船舶辅机(大管轮)题库
题型:单项选择题

解方程:

(1)3x2-6x-12=0;

(2)(x-1)2-8=0.

题型:单项选择题
选词填空(10分)
so, be, for, something, sorry, we, paper, cry, happy, give  
Love, sometimes we can’t see it!
This is an old story. One day, a man  小题1: not happy when his 7-year-old daughter made a box with some  小题2: . The family didn’t have much money.  小题3: the father thought his daughter wasted(浪费) the paper. The next day, the little girl  小题4: the box to her father and said, “Dad, today is your birthday. This box is  小题5: you.”
The man was  小题6: . But he was not happy again when he found there was nothing in the box. “Why didn’t you put  小题7: for me in the box?” He asked his daughter. The little girl looked at him and  小题8: , “Dad, I put my love in the box. It’s all for you!”
The man said  小题9: to his daughter. Sometimes, we can’t see love with  小题10: eyes.
题型:单项选择题

在HSE管理体系中,危害识别的范围主要包括()等方面。

A、人员

B、原材料

C、机械设备

D、作业环境

题型:单项选择题

清洁生产分析指标的选取原则包括()。

A.从产品生命周期全过程考虑

B.体现污染预防为主的原则

C.容易量化

D.满足政策法规要求和符合行业发展趋势

题型:单项选择题

以下不属于流行病学特征的是()

A.群体特征

B.以分布为起点的特征

C.预防为主的特征

D.对比的特征

E.以治疗疾病为主的特征

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