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(8分)2molCO2的质量为          g，含分子数约为       个，在标准状况下所占有的体积约为      L，含氧原子的物质的量为        mol。

答案

(8分) 88    2NA   44.8   4  ( 每空2分)

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阅读下面短文，请根据所给中文正确拼写单词，使短文意思完整。每空限填一词。
Dear Luke,
    My daughter Angela is very (1)___________ (安静的). She seldom (很少) talks to us, and she does
not (2) ___________ (有) any friends. What's worse, she is not (3) ___________ (感兴趣的) in studying.
All she does every day is to watch TV and play computer (4)__________ (游戏). I have told her many
(5)___________(次) that she should study hard, but she does not listen to me. What should I do?
Dear Tim,
    The (6)___________ (问题) with Angela is not that she does not study, but that she does not talk to
people. (7)__________ (如果) she can make some friends, her life will be more interesting.
(8)__________ (也许) Angela has this problem for a long time. So it won't be solved (被解决) soon.
You should (9)___________ (花费) more time with her and help her. This is the "homework"
(10) ___________ (两个都) you and your daughter need to do!
Good luck!
Luke
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问答题

下面是一个Applet程序，其功能是通过两个文本框获得用户输入的两个数，按回车键计算这两个数的商。请改正程序中的错误(有下画线的语句)，使程序能输出正确的结果。 注意：不改动程序的结构，不得增行或删行。 import java．awt．*； import java．awt．Event．*； import java．applet．*； /* ＜applet code="exl8_3.class"width=800 height=400＞ ＜/applet＞ */ public class ex18_3 extends Applet{ private TextField tf1，tf2; private String strAnswer； public void init(){ tf1=new TextField(20)； add(tf1)； tf2=new TextField(20)； add(tf2)； strAnswer="Undefined"； } public void paint(Graphics g){ Font f=new Font("TimesRoman"，Font．PLAIN，20)； g．setFont(f)； g．drawstring(“商：”，80，100)； g．drawstring(strAnswer，60，150)； } public boolean action(Event e，Object O) { String s1=tf1.getText( )； String s2=tf2.getText( )； try { int n1=String.valueOf(s1)； int n2=String.valueOf(s2)； int out=n1/n2； strAnswer=InteSer.parseInt(out)； } catch(NamberFormatEXCeption nfe) { strAnswer="不存在的数!”； } repaint( )； return true； } } ex18_3．html ＜HTML＞ ＜HEAD＞ ＜TITLE＞eX18_3＜/TITLE＞ ＜/HEAD＞ ＜BODY＞ ＜applet Code="eX18_3.class"width=800 height=400＞ ＜/applet＞ ＜/BODY＞ ＜/HTML＞
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