行车工必须在得到（）后方能进行操作。_爱下问搜题

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问题填空题

行车工必须在得到（）后方能进行操作。

答案

参考答案：指挥信号

单项选择题 B1型题

咀嚼肌收缩时所能发挥的最大力为（）

A.咀嚼力

B.咀嚼效率

C.最大力

D.牙周潜力

E.力

完形填空

I lost my sight when I was four years old by falling off a car and landing on my head. Now I am thirty-two. I can vaguely remember the brightness of __36____ and what color red is. It would be ___37____ to see again, but a(n) __38____ can do strange things to people. I don’t mean I would __39___ to go without my eyes. I simply mean that the loss of them made me appreciate more what I had _40_____.
My parents and my teachers saw something in me ----- a __41____ to live ---- which I didn’t see, and they made me want to fight in out with _42____.
The __43___ lesson I had to learn was to believe in myself. I am not talking about simply the kind of __44____ that helps me down so unfamiliar staircase alone. I __45___ something bigger than that: a confidence that I am, despite being __46____, a real, positive person; that there is a special place where I can make myself fit.
It took me years to discover and strengthen this confidence. It had to start with the easy and simple things. __47____ a man gave me an indoor baseball. I thought he was laughing at me and I was __48____. “I can’t use this,” I said. “Take with you,” he urged me, “and roll it around.” The words __49___ in my head. “Roll it around!” By rolling the ball I could _50_____ where it went. This gave me an idea how to achieve a goal I had thought _51____ before playing baseball. At Philadelphia’s Overbrook School for the Blind I _52___ a successful variation of baseball. We called it ground ball.
I have set ahead of me a series of goals and then tried to reach them, one at a time. I had to be clear about my _53____. It was no good crying for something that I knew at the start was __54___ out of reach because that only invited bitterness of failure. I would fail something anyway, __55___ on the average I made progress.

B．environment

D．preparation

A．self-respect

B．self-control

C．self-confidence

D．self-defence

B．unimportant