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问题 填空题

按一定的顺序排列下列词语。

梅花　　　　荷花　　　　桃花　　　　桂花

（1）按照开花的先后顺序：__________________________________

元宵节　　　重阳节　　　清明节　　　中秋节　　　端午节

（2）按时间顺序：__________________________________________

答案

（1）桃花　荷花　桂花　梅花

（2）元宵节　清明节　端午节　中秋节　重阳节

填空题

将2．4mol某金属投入1．8L 2mol/L的酸中，恰好完全反应，并得到7．2gH2，则某金属的化合价为   ，该酸为       元酸。
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单项选择题

ActiveX is the name (66) has given to a set of object-oriented concepts, technologies, and tools. It is important to notice that ActiveX is not a (67) technology, but a brand name, what it’s applied to can vary over time. However, the main technology is COM. Used in a network with a (68) and additional support, COM becomes the DCOM. The main object that is created when writing a program to run in the ActiveX environment is a (69) , a self-sufficient program that can be run anywher6 in the ActiveX network. This component is known as an "ActiveX control". An ActiveX control is roughly equivalent to a applet. One important difference is that an ActiveX control must be (70) for a specific platform, while an applet is platform-independent.

A．appliances

B．chips

C．component

D．silicon
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