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问题 单项选择题 A3/A4型题

某7岁男孩，发作性头痛、眩晕、呕吐3个月，于体位改变时出现，近期出现吞咽困难、声音嘶哑。

进一步检查首选()

A．脑脊液化验

B．脑室造影

C．MRI

D．脑血管造影

E．头颅平片

答案

参考答案：C

阅读理解

请找出李阳在学习中的困难。

Dear friend,

      Now I am new here. I have learned English for only one year, so I can't understand what the teacher

says and I am afraid of talking with any classmates in English. I know this is the most important year for

me and I really work very hard. But the biggest problem for me is that I can't read fast and I couldn't sleep

the night before big exams. Could you help me?

                                                                                                                                         Yours,

                                                                                                                                        Li Yang 

1. He can't               __________________

2. He is afraid of       __________________

3. He can't               __________________

4. He couldn't           __________________
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选择题

叶蝉散（isoprocard）对水稻叶蝉和飞虱具有较强的触杀作用，防效迅速，但残效不长。工业上用邻异丙基苯酚合成叶蝉散的过程如下：

下列有关说法正确的是

A．叶蝉散的分子式是C11H16NO2

B．邻异丙基苯酚发生了取代反应

C．叶蝉散在强碱性环境中能稳定存在

D．可用FeCl3检验叶蝉散中是否含邻异丙基苯酚
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