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【简答题】
Directions : In this section, you will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. When the passage is read for the second time, you are required to fill in the blanks numbered from 21 to 30 with the exact words you have just heard. Finally, when the passage is read for the third time, you should check what you have written. A 1 professor stood before his class with some items on the desk in front of him. When the final student was seated, he picked up a large and empty glass bottle and filled it with rocks about 2 inches in 2 . He then asked the students if the jar was full. They agreed that it was. He then picked up a box of pebbles and added them to the jar, shaking it lightly. The pebbles, of course rolled into the open areas between the rocks. “Is this jar filled now?” Yes, the students said. But then he picked up a bag of sand and poured it into bottle. The sand filled in everything else. Once more he asked if it was full and after some thinking they said that it was. The professor then took 2 cans of beer and poured it into bottle. The students laughed 3 . After the laughter stopped, the professor spoken again: “I want you to 4 that this jar represents your life. The rocks are the important things in your life, your family, your partner, your health, your children — things that would still 5 even if everything else were lost, and your life would still be full. The pebbles are the other things that matter — like your job, your house, your car. The sand is everything else. The small stuff. If you put the sand into the jar first there is no room for the pebbles or the rocks.” “The same goes for your life. If you spend your life on small stuff, you will never have room for things that are important to you. Pay attention to things that are 6 to your happiness: your family, your health. There will always be time to go to work, clean the house and so on. Take care of the rocks first — the things that really matter. Set your 7 . The else is just sand.” After the 8 of what he said settled, one of the students 9 his hand and 10 what the beer represented. “I am glad you asked.” He replied. “It just goes to prove that no matter how full your life may seem, there is always room for a couple of beers.”
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【判断题】当纵向受拉钢筋的面积相等时,选择较细直径的变形钢筋可减小裂缝宽度。
A.
正确
B.
错误
【简答题】由3个十万、8个千、6个十组成的数是______.
【简答题】一个数由7个亿、5个十万、6个千、3个百和8个十组成,这个数写作______,改写成用万作单位的数是______万;省略万后面的尾数约是______万.
【简答题】一个数是由3个十亿、9个千万、8个百万,6个万,2个百,7个十组成,这个数是(    ), 省略亿后面的尾数约(    )亿。
【单选题】两台同型号的同步发电机并联运行时,已均功。由于两台柴油机调差率的不同,当电网功率减少后,两机的输出功率都有减少,结果是调差率小的输出功率与调差率大的输出功率相比为______。
A.
调差率小的减少的功率大
B.
调差率大的减少的功率大
C.
两者变化量相等
D.
无法确定
【单选题】两台同型号的同步发电机并联运行时,已均功。由于两台柴油机调差率的不同,当电网功率增大后,两机的输出功率都有增加,结果是调差率小的输出功率与调差率大的输出功率相比为______。
A.
调差率小的增加的功率大
B.
调差率大的增加的功率大
C.
两者相等
D.
无法确定
【单选题】由6个千万、8个十万和3个十组成的数是(  )
A.
6080030
B.
60800030
C.
60800300
D.
608030
【简答题】由8个千万,3个十万,6个千组成的数是:______.
【单选题】有关婴幼儿运动发育的描述不正确的是
A.
婴儿3个月时抬头较稳
B.
婴儿6个月时可以坐稳
C.
婴儿8~9个月时可用上肢向前爬
D.
婴儿11个月时可以独自站立片刻
E.
15个月小儿可独自走稳
【单选题】两台同型号的同步发电机并联运行时,已均功。由于两台柴油机调差率的不同,当电网功率减少后,两机的输出功率都有减少,结果是调差率小的输出功率与调差率大的输出功率相比为______。
A.
调差率小的输出功率大
B.
调差率大的输出功率大
C.
两者相等
D.
无法确定
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