以硅酸、铝化合物或有机化合物为基料制成的纺织用防垢整理剂
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下列离子方程式书写正确的是 [ ]
A．向Fe2(SO4)3溶液中加入过量的Na2S:2Fe3+ +S2- ==2Fe2++S↓
B．向NH4Al(SO4)2溶液中加入少量的Ba(OH)2溶液：Al3++3OH-+Ba2++SO42-==BaSO4↓+Al(OH)3↓
C．用铜作电极电解饱和食盐水：2Cl-+2H2O
D．淀粉碘化钾溶液在空气中变蓝：4I-+O2+H2O==2I2+4OH-
血液系统疾病 （）
A.紫癜伴发热
B.紫癜伴黄疸
C.紫癜伴肝脾淋巴结肿大
D.紫癜伴休克
E.双下肢对称性紫癜伴荨麻疹
单击命令按钮时，下列的执行结果为()。 Private Sub Command1_Click() Dim x As Integer，y As Integer x=86：y=29 Call Proc(x，y) Print x；y End Sub Public Sub Proc(n As Integer，ByVal m As Integer) n=n Mod 10 m=m Mod 10 End Sub
A．12 32
B．6 29
C．2 3
D．12 3
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| Certainly dustmen prefer to be known as "Reuse Collection and Disposal Officers". You may think that this is rather 1 , and it is better to call a spade a spade. But dustmen can be as 2 as people of any other occupation, though we must 3 that their job is not a 4 one in the world. We often take dustmen for granted. Perhaps because they usually come very early in the morning, before most people are 5 . We are likely to forget their 6 . Our dustbins are 7 regularly, but we 8 stop to think about the men who do this. However, it is one of the most important jobs in the world, and when there are no dustmen to 9 the rubbish, the general 10 soon becomes aware that something is wrong. Recently, the dustmen of England went on strike for higher wages. During the first few days it was regarded as a 11 . But when the first two weeks had passed, and the dustbins were overflowing in nearly every backyard in the country, the joke did not seem so 12 any more. 13 the strike continued, people could not 14 the hills of rubbish around their dustbins, and they looked for other places in which to 15 it. Even Leicester Square, in the heart of West End of London, was 16 high with plastic bags full of smelly rubbish. This was a(n) 17 attraction that the people of London were not at all 18 to see. Even when the strike was over, it took several weeks for the country to get cleaned up completely. Perhaps now the English people appreciate the work of 19 dustmen rather more 20 and won't take them for granted any more. | ||||
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队列通常采用的两种存储结构是( )
A．顺序存储结构和链式存储结构
B．散列方式和索引方式
C．链表存储结构和数组
D．线性存储结构和非线性存储结构