客轮可以用两种方式通过三峡大坝。 (1)方式一,让客轮逐级通过五级梯级船闸:如图

题型:计算题

问题:

客轮可以用两种方式通过三峡大坝。

(1)方式一,让客轮逐级通过五级梯级船闸:如图所示,当下游客轮进入闸室,关闭闸门B后,先应关闭阀门_______,再打开阀门_______,待闸室内水位稳定后,打开闸门A,让客轮行驶至上一级闸室。该船闸利用了_______原理。

(2)方式二,3000吨以下的客轮可用升船机直接垂直提升至上游:让客轮驶入升船机承船厢,关闭厢门,用升船机将承船厢直接提升至上游,打开厢门,让客轮驶出船厢。如果该承船厢长100m,宽20m,自重1000t,承船厢中的水4000t,客轮质量2000t,大坝上游比下游水位高100m,则升船机提升承船厢运送该客轮至少要做多少功?该客轮在承船厢中的吃水深度小于多少?

考点:浮力及阿基米德原理连通器原理及应用功的计算
题型:计算题

男性,12岁。确诊急性淋巴细胞性白血病2年,目前仍在定期强化治疗中,骨髓检查白血病仍处于缓解期。检查发现病人左侧睾丸肿大,无压痛。此时最合适的治疗是()

A.左侧睾丸手术切除

B.左侧睾丸放射治疗

C.双侧睾丸放射治疗

D.加大化学治疗强度

E.鞘内注射甲氨蝶呤加地塞米松

题型:计算题
根据所给的中文句子,选出相应的英文句子。
( ) 1. 你好!
( ) 2. 我叫迈克。
( ) 3. 你叫什么名字?
( ) 4. 我叫白玲。
( ) 5. 再见。
A. What's your name?
B. Hello!
C. My name is Bai Ling.
D. My name is Mike.
E. See you!
题型:计算题
While waiting to pick up a friend at the airport in Portland, Oregon, I noticed a man coming toward me carrying two light bags. He stopped right next to me to       his family.
First he moved to his youngest son as he laid down his bags. They gave each other a long, loving hug.       they separated, I heard the father say, “It’s so good to see you, son. I missed you so much!” His son smiled somewhat shyly and replied softly, “Me, too, Dad!”
Then the man stood up, gazed in the       of his oldest son and said, “You’re already quite the young man. I love you very much, Zach!” They too hugged a most loving, tender hug.
After several       , he turned to his wife and declared, “I’ve saved the best for last!” and      to give his wife the longest, most passionate kiss I       remember seeing.
For an instant they       me of newlyweds(新婚夫妇), but I knew by the age of their kids that they couldn’t possibly be. I puzzled about it for a moment and gathered my courage to      ask, “Wow! How long have you been married?”
“Almost twelve years.” he replied,       breaking his gaze from his lovely wife’s face. “Well then, how long have you been away?” I asked. The man      turned and looked at me,. “Two whole days”
Two days? I was      . By the intensity of the greeting, I had       he’d been gone for at least several weeks — if not months. I know my expression      me. Hoping to stop our conversation politely and continue with my       for my friend, I said almost immediately, “I hope my        is still that passionate after twelve years!”
The man suddenly       smiling. He looked me straight in the eye, and with power that burned right into my soul, he told me something that left me a        person. He told me, “Don’t    , friend …decide!” Then with wonderful smile, he and his family turned and left together.
I was still watching that special family walk just out of sight when my friend        to me and asked, “What are you looking at?” Without      , and with a curious sense of certainty, I replied, “ My future!” 
小题1:
A.greet B.hugC.comfortD.appreciate
小题2:
A.AsB.Before C.Because D.Since
小题3:
A.mindB.eyesC.heart D.head
小题4:
A.monthsB.hoursC.momentsD.weeks
小题5:
A.proceededB.managedC.pretendedD.promised
小题6:
A.never B.already C.ever D.almost
小题7:
A.rememberedB.remindedC.warnedD.informed
小题8:
A.nervously B.strangely C.casually D.excitedly
小题9:
A.onB.afterC.withoutD.by
小题10:
A.directlyB.finallyC.cautiouslyD.deliberately
小题11:
A.shockedB.frightened C.delightedD.discouraged
小题12:
A.assumedB.plannedC.realizedD.decided
小题13:
A.discoveredB.overlookedC.betrayedD.withdrew
小题14:
A.research B.controlC.searchD.reach
小题15:
A.marriageB.relativesC.familyD.friends
小题16:
A.continuedB.keptC.stoppedD.tried
小题17:
A.differentB.reliableC.wonderfulD.perfect
小题18:
A.remarkB.imagineC.hopeD.quit
小题19:
A.called onB.dropped inC.came upD.waved at
小题20:
A.hesitationB.decisionC.difficultyD.intention
题型:计算题

电算化后,进行账账核对工作是不必要的。

题型:计算题

简述显微外科应用范围。

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