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【单选题】
若在windows7系统中同时打开多个窗口,下列说法错误的是。
A.
多个窗口可以层叠,堆叠或并排显示
B.
标题栏成显示的是活动窗口
C.
Windows中当前窗口可以有多个
D.
Windows中当前窗口只有一个
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参考答案:
举一反三
【简答题】Time Zones(时区) Strange things happen to time when you travel. Because the earth is divided into twenty-four zones one hour apart(相差).You can have days with more or fewer than twenty-four hours, and we...
【单选题】某汽油喷射系统的汽油压力过高,以下( )正确。
A.
电动汽油泵的电刷接触不良
B.
汽油压力调节器密封不严
C.
油管泄露
D.
回油管堵塞
【简答题】逻辑代数和普通代数一样,也是用字母做变量,但逻辑代数的变量取值只有两个它们用()表示两种不同的逻辑状态
【简答题】Strange things happen when you travel, because the earth is divided into twenty-four zones. The time difference between two zones is one hour. You can have days with more than twenty-four hours and da...
【单选题】逻辑代数和普通代数一样,也是用字母做变量,但逻辑代数的变量取值只有两个它们用( )表示两种不同的逻辑状态。
A.
0和1
B.
0和A
C.
0和B
D.
1和A
【单选题】逻辑代数和普通代数一样,也是用字母做变量,但逻辑代数的变量取值只有两个,他们用( )表示两的逻辑状态。
A.
0和1
B.
0和A .
C.
0和B
D.
1和A
【简答题】阅读理解。 Strange things happen when you travel, because the earth is divided into twenty-four zones (分……区). The time difference between two zones is one hour. You can have days with more than twenty-four...
【单选题】Strange things happen to time when you travel, because the earth is divided into twenty-four time zones, one hour apart. You can have days with more or fewer than twenty-four hours, and weeks with mor...
A.
no day really has twenty-four hours
B.
the earth is divided into time zones
C.
time zones are not all the same size
D.
no one knows where time zones begin
【单选题】某汽油喷射系统的汽油压力过高,以下哪项正确。
A.
电动汽油泵的电刷接触不良
B.
回油管堵塞
C.
汽油压力调节器密封不严
D.
A,B,C都正确
【单选题】听力原文: Strange things happen to time when you travel, because the earth is divided into twenty-four time zones, one hour apart. You can have days with more or fewer than twenty-four hours, and weeks wi...
A.
Seven days.
B.
Twenty-four hours.
C.
One hour.
D.
More than seven days.
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