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【简答题】
Visual Basic 6.0 是一种面向 可视化编程语句,采用了驱动的编程机制。
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举一反三
【简答题】The number of passengers remained steady between 2004-200
【单选题】已知一个等差数列的第5项等于10,前3项的和等于3,那么(  )
A.
它的首项是-2,公差是3
B.
它的首项是2,公差是-3
C.
它的首项是-3,公差是2
D.
它的首项是3,公差是-2
【简答题】目前我国的三大高危行业是指 。
【单选题】Steve Banks made personal contact with product users to discover what they wanted from his software.
A.
Right
B.
Wrong
C.
Doesn't say
【简答题】(本小题满分10分)已知等差数列{ a n }的首项 a 1 =1,公差 d >0,且第2项、第5项、第14项分别是一个等比数列的第二项、第三项、第四项. (Ⅰ)求数列{ a n }的通项公式; (Ⅱ)设 = ( n ∈N * ), = b 1 + b 2 +…+ b n ,是否存在最大的整数 t ,使得任意的 n 均有 总成立?若存在,求出 t ;若不存在,请说明理由
【单选题】Between 1950 and 2004, standards of living in the OECD countries
A.
did not change at all.
B.
were converging.
C.
all increased at the same rate.
D.
decreased at the same rate.
E.
decreased, but at different rates.
【单选题】已知数列{a n },{b n }都是公差为1的等差数列,其首项分别为a 1 ,b 1 且a 1 +b 1 =5,a 1 ,b 1 ∈N*,设c n = (n∈N*),则数列{c n }的前10项之和等于 [     ]
A.
55
B.
70
C.
85
D.
100
【单选题】Steve Banks made personal contact with product users to discover what they wanted from his software.
A.
Right
B.
Wrong
C.
Doesn't say
【简答题】What is it that made Steve Jobs special? What can we learn from this once-in-a-lifetime entrepreneur? Steve Jobs was a visionary and he ensured that he took his company through his vision whenever he ...
【单选题】已知数列{a n }、{b n }都是公差为1的等差数列,其首项分别为a 1 、b 1 ,且a 1 +b 1 =5,a 1 、b 1 ∈N*,设 (n∈N*),则数列{c n }的前10项和等于 [     ]
A.
55
B.
70
C.
85
D.
100
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