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【判断题】
微生物燃料电池是利用微生物作为反应主体，将燃料（有机物质）的化学能直接转化为电能的一种装置。其工作原理与传统的燃料电池存存在着根本不同。A.
正确
B.
错误
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【单选题】设有命令按钮Command1的单击事件过程,代码如下: Private Sub Command1_Click() Dim a(30) As Integer For i=1 To 30 a(i)=Int(Rnd*100) Next For Each arrItem In a If arrItem Mod 7=0 Then Print arrItem; If arrItem>90 Then Exit ...
A.
a数组中的数据是30个100以内的整数
B.
语句For Each arrItem In a有语法错误
C.
If arrItem Mod 7=0……语句的功能是输出数组中能够被7整除的数
D.
If arrItem>90……语句的作用是当数组元素的值大于90时退出
【简答题】The plane crashed four days ago, but they're still holding out hope of finding more ________(survive).
【简答题】As we approach the 21st century，it is clearer than ever that science and technology are changging the way we live and work．The breakthroughs in bioengineering science are helping to reveal the mysteri...
【单选题】The trapped explorers weren't ______ much hope of survival before the rescue team arrived. [ ]
A.
holding back
B.
holding on
C.
holding out
D.
holding up
【简答题】BEIJING, Feb 13 — Never has China's economic growth attracted so much global attention. The shock waves from the financial cr (危机) that started in the United States have spread across the entire w...
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