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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.

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

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

下列常数中，不合法的C常量是 ( )

A．-0x3b1

B．123e+2.3

C．''

D．6e+7

电缆接头温度不得超过60°C。（）