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问题 多项选择题

可消除吩噻嗪类药物中氧化产物干扰的含量测定方法有（）

A、紫外标准对照法

B、导数分光光度法

C、萃取-双波长分光光度法

D、钯离子比色法

E、铈量法

答案

参考答案：C, D

单项选择题

Everybody dreams. Some people think dreams can tell us about the future. Other people think dreams can tell us about ourselves. It’s like our (11) is talking to us.
Why are dreams (12) strange and hard to understand Some people think our brain uses (13) to talk to us. When we fly, swim, or fall down in our dreams, it has a (14) meaning. Lots of doctors help people (15) their dreams. They find that dreams tell us about our (16) and fears.
These days, many scientists (17) that dreams are very important. During the day, we have many (18) , and our brain receives a lot of information. When we dream, our brain (19) information that is not important, and puts the most important information into our (20) . As we learn more about the brain, we may find answers to our questions about dreams.

Ⅰ. 完形填空

/Close
阅读下列短文，从每小题所给的A、B、C、D四个选项中选出一个最佳选项。

A．experiences

B．dreams

C．mistakes

D．inventions
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单项选择题 案例分析题

冬至日（12月22日）凌晨4点（地方时）一架飞机从甲地（60°N、100°W）起飞，沿最近航线匀速飞行，8小时后抵达乙地（60°N、80°E）。据此回答问题。

这架飞机若以同样速度，沿60°N纬线飞行，抵达乙地大致需要（）

A.16小时

B.12小时

C.20小时

D.24小时
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