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【简答题】
根据短文内容,选择最佳答案。 (答案之间不需要空格,记得大写!) In the morning Mr Smith comes into the garden at the back of his house . He sees so much snow in the garden. Mr Smith wants to take his car out , so he asks a man to clean the road from his garage( 车库 )to the gate. He says to the man, "Don’t throw any snow on that side. It will damage( 损坏 )the flowers in my garden , and don’t throw any on the other side for it will damage the wall . And don’t throw any into the street , or the policeman will come. Then he goes out. When he comes back, the path is clean . there is no snow on the flowers, on the wall or in the street. But when he opens the garage to get his car out, he sees , the garage is full of snow. the snow from the path, and his car is under the snow! ( ) 1.In the morning Mr Smith finds ______is full of snow . A. his garden B. his garage C. his house D. his car ( )2 .he wants a man to clean the road. He _______. A. doesn’t like snow at all B. likes the clean road C. wants to take his car out of the garage D. often asks the man to do something ( )3 .Where does Mr Smith tell the man to throw the snow in the garden? A. On the flowers B. Into the street C. On the wall D. We don’t know ( )4.He opens the garage________. A. and takes his car out B. and finds it’s full of snow C. and finds there is no air in D. and takes snow out ( )5. Where is Mr Smith’s car? A. Under the snow from the road B.in the street C. Near the road D.in front of his house
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【单选题】双缩脲反应结后,反应液的颜色为
A.
紫红色
B.
鲜红色
C.
棕红色
D.
粉红色
【单选题】前项为生物材料,中项为鉴定所用的化学试剂,后项为反应结果所产生的颜色,下列选项中错误的是 [     ]
A.
苹果、班氏试剂、砖红色
B.
花生油、苏丹Ⅲ染液、橘黄色
C.
黄豆、双缩脲试剂、紫色
D.
卵清蛋白、双缩脲试剂、红色
【多选题】下列指令或指令序列中,能将外部数据存储器3355H单元内容传送给A的是( )。
A.
MOVX A,3355H
B.
MOV DPTR,#3355H MOVX A,@DPTR
C.
MOV P0,#33H MOV R0,#55H MOVX A,@R0
D.
MOV P2,#33H MOV R1,#55H MOVX A,@R1
【单选题】Ms. Smith said, “Don’ t be late, John.” →Ms. Smith told _____.
A.
John not to be late
B.
John to be not late
C.
John not late
D.
not to be late, John
【单选题】检测蛋白质时,事先留出一些黄豆组织样液,主要目的是 [     ]
A.
重复两次,结果准确
B.
与加入双缩脲试剂后发生的颜色反应作对照
C.
再用于还原糖的鉴定
D.
失败后还可重做
【简答题】回车换行标签(即在出现的位置插入一个简单的换行符)。
【简答题】假设在单道批处理环境下有四个作业,已知它们进入系统的时间、估计运行时间。 应用短作业优先(SJF)调度算法,计算出作业的平均周转时间和平均带权周转时间。 1.jpg
【简答题】假设在单道批处理环境下有四个作业,已知它们进入系统的时间、估计运行时间。 应用先来先服务(FCFS)作业调度算法,计算出作业的平均周转时间和平均带权周转时间。 1.jpg
【多选题】下列指令或指令序列中,能将外部数据存储器3355H单元内容传送给A的是( )。
A.
MOVX A,3355H
B.
MOV DPTR,#3355H
C.
MOV P0,#33H
D.
MOV P2,#33H
【多选题】下列指令或指令序列中,能将外部数据存储器3355H单元内容传送给A的是()。
A.
MOVX A,3355H
B.
MOV DPTR,#3355H MOVX  A,@DPTR
C.
MOV P0,#33H
D.
MOV P2,#33H MOV R0,#55H MOVX A,@R0
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