下面三种速率中，正确的排列顺序是（） A.Scheduled Rate>Served_爱下问搜题

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问题单项选择题

下面三种速率中，正确的排列顺序是（）

A.Scheduled Rate>Served Rate>MacLayer Rate

B.Served Rate>Scheduled Rate>MacLayer Rate

C.Scheduled Rate>MacLayer Rate>Served Rate

D.MacLayer Rate>Scheduled Rate>Served Rate

答案

参考答案：A

完形填空

完形填空。

     Sam is a bus driver in a big city.  All day he drives a bus through busy streets.Driving a big bus in very
   1    work.  It makes the drivers unhappy.  But not Sam!
     Sam is always happy.  And the people who ridc in his bus seem to be happy, too. This story shows
  2  .
     Early one morning, Sam started his big green and yellow bus.  He went off on 3    work.  "Oh, what a beautiful morning!" he sang.   "Oh, what a beautiful day!"
     At the first bus stop, a man was    4   .  "Good morning, Mr. James," said Sam with a big smile. "How are you?"  ,
     "Fine, thank you. Sam," said Mr. James. "How are you?"
     "Wonderful!" Sam answered.  "Just wonderful! This is a fine day. "
     Mr. James smiled.  He took a seat.  As he looked   5   the window, he still smiled.
     At 6         stop a man came running up.  He was puffing (气喘吁吁 ).  "I have to-puff-catch a train at seven," he said.  "Can you-puff-get me to the station?"
     "Now, just sit down and rest," said Sam.  "I'll drive a little   7 .  We will be there in time.  Then you   8   run again."
     "Thank you. " said the man.  He sat down.
     Sam did drive! just a little faster.  He got to the station before seven!
    "Thank you," said the man, as he got off the bus.  "You are the best bus driver in the city ! "
     As he drove on, Sam      9    talking again. By this time, many people were on the bus.  They were all going to work.  But Sam made the ride seem like fun.
     "It is now ten minutes after seven," Sam called out.
     "The sky is blue.  It will not rain today.  We all like sunshine,  don't we?"
     He began to sing, "I love you,  Mr.  Sunshine.  I love you,  Mr.  Sun.  In all the world I love you best.
You are the only one. "
     "What is that song, Sam?" a girl asked.
     "It's my song," he said.  "I made it up.  I like to sing.  It makes    10 people want to sing,  too."
    Sam was right! The man behind him started to sing!

( )1  A. easy
( )2. A. what
( )3. A. today's
( )4. A. waiting
( )5. A. into
( )6. A. the first
( )7. A. faster
( )8. A. don't
( )9. A. liked
( )10.A. another

B.great
B.why
B.day's
B.talking
B.out of
B.the last
B.slower
B.won't
B.started
B.the others

C.interesting
C.when
C.the day's
C.laughing
C.at
C.the other
C.quicker
C.won't have to
C.enjoyed
C.others

D.hard
D.who
D.the days
D.riding
D.up
D.the next
D.farther
D.have to
D.finished
D.other

填空题

汽车自动空调执行元件测试时，如果向电子控制单元输入进气控制电机短路信号，则（）。