关于正常人胰液的叙述，下列哪项是错误的 A．胰液为碱性液体，pH约为7.8～8.4

中介语

My friend Henry, with him I studied in the same class, didn’t like studying at school. That’s because he couldn’t go to high school. He had to return back to his hometown, where his father wished him to learn to manage our small shop. However, the young man was not interesting in it and didn’t do as his father said. He spends a lot of time reading and learned how to repair cars. Last month, I accepted an e-mail from him inviting me take my vacation in his hometown. I started off. Seeing that he was such successful, I said, “Henry, all road lead to Rome. You are great!”

某男性铅作业工人，除尿铅增高外，具有神经衰弱症状，口内有金属味，尿 ALA升高，可诊断为

A．轻度铅中毒

B．铅吸收

C．铅中毒

D．重度铅中毒

E．中度铅中毒

阿托品中毒可用的解救药物为（）。

A.0.5％活性炭

B.新斯的明

C.安定

D.安乃近

E.解磷定

下列哪项属于OFDM技术的缺点（）。

A、抗多径能力差

B、峰均比高

C、需要复杂的双工器

D、与MIMO技术结合复杂度高