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【简答题】
三人独立地破译一个密码,他们能单独译出的概率分别为1/5,1/3,1/4,则此密码被译出的概率为
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举一反三
【单选题】My hometown has taken on a new look. ___________!
A.
Great changes have been taken place
B.
What great change
C.
How it has changed
D.
How great it has changed
【多选题】左向右分流先心病患儿的症状包括()。
A.
生长发育落后
B.
活动耐力差
C.
反复肺部感染
D.
喜欢蹲踞
E.
气促
【单选题】What has taken place in the Great Plains grasslands during the last century?
A.
The average annual rainfall has risen and fallen several times
B.
Large parts of the prairie have been converted to agricultural use
C.
Melting glaciers have formed numerous depressions in the soil
D.
Scientists have transformed the region into one large carbon sink
【单选题】关于计算机文件,下列说法不正确的是( )
A.
文件在不同的文件夹下也不可以同名
B.
文件(File)是指存放在外存储器上的一组相关信息的集合
C.
文件名是操作系统中区分不同文件的唯一标志
D.
文件中存放的可以是一个程序,也可以是一篇文章、一首乐曲、一幅图画等
【多选题】左向右分流型先心病的症状有()
A.
生长发育落后
B.
活动耐力差,易疲乏
C.
出生后持续青紫
D.
已反复发生肺部感染
E.
可有血红蛋白增高和喜欢蹲踞
【单选题】________ great progress he has made this term ! He feels _______ .
A.
What a ,excited
B.
What, excited
C.
How ,excited
D.
How an ,exciting
【多选题】右向左分流先心病的症状有
A.
活动耐力差,易疲乏,喜欢蹲踞
B.
婴儿期起持续青紫
C.
经常反复呼吸道感染
D.
生长发育落后
E.
红细胞增高,可发生脑栓塞
【多选题】左向右分流先心病的症状有
A.
生长发育落后
B.
活动耐力差,易疲乏
C.
可有血红蛋白增高和喜欢蹲踞
D.
出生后持续青紫
E.
易反复发生肺部感染
【简答题】What has risen greatly in the U.S. since 1980?A. The number of overweight kids. B. The amount of corn being added to our foods. C. The number of the items in the average supermarket. D. Both A and B.
【单选题】_________ he has made! He is hard-working enough to achieve good marks.
A.
What a great progress
B.
What great progress
C.
How great progress it is
D.
How great a progress it is
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