A．工作很忙 B．工资不高 C．想换工作 D．单位离家远

下图阴影部分表示夜半球，外圆为30°N纬线，内圆虚线为北极圈。读图回答1—2题。

1、假设此刻某飞行员位于（120°E，66°34′N），他驾驶飞机沿北极圈向东飞行，12小时后返回原地，则他能观测到的日出和日落次数分别是[ ]

A．一次，一次

B．一次，两次

C．两次，一次

D．零次，一次

2、若另一架飞机是从开罗（30°N，30°E）飞往悉尼（33°S，150°E），起飞时间和途中飞行时间与上题中的飞机相同，当飞机途中经过晨昏线时，北京时间是[ ]

A．18时

B．19时12分

C．18时40分

D．18时20分

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。

Improve your memory, improve your life

Mark began to introduce the guest speaker to the audience, but then he paused in horror. ____小题1:_____

Barbara hid her jewelry when she went on vacation. When she came back, she couldn’t remember where she’d put it.

____小题2:______. Most people have. But memory can be developed.

First, relax. If you’re overanxious about remembering something, you’ll forget it. ____小题3:____.Take a deep breath and tell yourself that you have all the time in the world to remember.

Second, avoid being negative. If you keep telling yourself that your memory is bad, your mind will come to believe it and you won’t remember things. When you forget something, don’t say, “ Gee, I need to have my brain rewired(重装电线).”

To improve your memory, you’ll need to take an active role. Like your body, your memory can be strengthened through exercise. ___小题4:______ For example, if you’re learning a language, try to actively remember irregular verbs.

You may also want to make associations, or links, between what you’re trying to remember and things you already know. For example, if you need to catch a plane at 2:00pm, you can imagine a plane in your mind and notice that it has two wings. ___小题5:_______.  

Don’t worry.

He had forgotten her name.

Perhaps you’ve had experiences like these.

Look for opportunities to exercise your memory.

Jokes like this will have a negative effect on your memory.

You are now ten times more likely to remember the take-off time.

Relaxing will help improve your awareness and ability to concentrate.

在定量泵－变量马达的容积调速回路中，如果液压马达所驱动的负载转矩变小，若不考虑泄漏的影响，试判断马达转速基本不变；泵的输出功率（）。

A、增大

B、减小

C、基本不变

D、无法判断

在机掘工作面作业时应（）

A.防护好掘进机

B.退出掘进机

C.切断掘进机电源

D.闭锁隔离开关

伸肌腱断裂出现

A．弹响指
B．槌状指
C．爪形手
D．杵状指
E．脊髓病手