【名词&注释】
化妆品(cosmetic)、答题卡(answer sheet)、收银台、澄清石灰水
[单选题]下列除去杂质的方法正确的是
A. 除去CO2中混有的CO：用澄清石灰水洗气
B. 除去BaCO3固体中混有的BaSO4：加过量盐酸后，过滤、洗涤
C. 除去FeCl2溶液中混有的FeCl3：加入过量铁粉，过滤
D. 除去Cu粉中混有的CuO：加适量稀硝酸后，过滤、洗涤
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举一反三：
[单选题]I was ten when I first sat with my grandmother behind the cashier（收银台）in her general store. 71 I quickly learned the importance of treating customers politely and saying “thnak you.”At first I was paid in candy. 72 I worked every day after school, and during the summer and on weekends and holidays from 8 a.m. to 7 p.m. My father helped me set up a bannk account. 73
A. By the time I was 12, My grandmother thought I had done such a good job that the promoted me to selling cosmetics（化妆品）. I developed the ability to look customers directly in the eye. Even though I was just a kid, women would ask me such things as “ What color do you think I should wear?” I took a real interest in their questions and was able to translate what they wanted into makeup（化妆）ideas. 74
B. The job taught me a valuable lesson: to be a successful salesperson, you didn’t need to be a Rocket scientist—you needed to be a great listener. _____expect they are NO longer women purchasing cosmetics from me; instead, they are kids who tell me which toys they would like to see designed and developed.
C. Later I received 50 cents an hour.
D. Before long, she let me sir there by myself.
E. I ended my selling a record amount of cosmetics.
F. Today I still carry that lesson with me: I listen to customers.
G. My grandma’s trust taught me how to handle responsibility.
H. Soon I found myself looking more beautiful than ever before.
I. G. Watching my money grow was more rewarding than anything I could have bought.
J. __________
[单选题]鼠李科与葡萄科的区别之一在于是否具花盘。( )
A. 正确
B. 错误
[单选题]一朵花中由几个分离的心皮构成的雌蕊属于复雌蕊。( )
A. 正确
B. 错误
[单选题]阅读下列短文，从每题所给的四个选项（A、
B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
A. A
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