使用梯子前必须检查,确保安全可靠,如梯子有松动、破裂、磨损或腐朽现象禁止使用

题型:判断题

问题:

使用梯子前必须检查,确保安全可靠,如梯子有松动、破裂、磨损或腐朽现象禁止使用

考点:中国电信翼运维等级考试中国电信翼运维(五级)中国电信翼运维(五级)题库
题型:判断题

The Story of My Life by Helen Keller is the most __31____(influence) book in my life. It is filled with courage, struggle and faith throughout. Helen Keller was once in deep despair in her __32____, but finally she decided to overcome her physical defects and live happily. Furthermore, she showed great patience__33____ her long and hard learning period.

I have learned, above all, three lessons from her story. First, she taught me that often the road to success is to face hardships __34____(bravety). Maybe you are born under an ill star yet you can stand a better chance _35____ others. It is therefore important that you screw up your courage__36____ courage is needed. Second, the impairment of part of her senses did not stop__37____ learning: on the contrary, she had made continual __38____ to go deeper into the realm of knowledge, and her perseverance had thus helped her overcome many handicaps. __39____, she advised that we should make the most of our sense-organs as if we __40____(lose) them soon because this way we would observe the world more carefully than ever before.

题型:判断题

某地乡村公路边有很多柿子园。金秋时节农民采柿子时,最后总要在树上留一些熟透的柿子。果农们说,这是留给喜鹊的食物。每到冬天,喜鹊都在果树上筑巢过冬,到春天也不飞走,整天忙着捕捉果树上的虫子,从而保证了来年柿子的丰收。下列选项中不属于我们从这个事例中得到的启示 [ ]

A.事物之间有其固有的客观联系

B.保持生态平衡是人类生存发展的必要条件

C.人们可以发现并利用规律来实现自己的目的

D.人与自然的关系是相互利用的关系

题型:判断题

下列哪项不是高钙血症的病因

A.甲状旁腺功能亢进

B.维生素E中毒

C.恶性肿瘤

D.维生素D中毒

E.维生素A中毒

题型:判断题

下列常数中,不合法的C常量是 ( )

A.-0x3b1

B.123e+2.3

C.''

D.6e+7

题型:判断题

电缆接头温度不得超过60°C。()

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