(单选题)

What does the underlined part in Para. 3 mean?

A.Every patient has different speaking situation.

B.Translating patients’ speech sounds is fruitful.

C.It needs much time to learn computer models.

D.The job to build patients’ neural network models is hard.

参考答案：D

参考解析：

词义猜测题。句意：第三段划线部分是什么意思？根据第三段第四句“How these signals translate to speech sounds varies from person to person, so computer models must be “trained” on each individual.”可知，这些信号转化为语音的方式因人而异，计算机模型必须针对每个人进行训练，因此建立病人神经网络模型的工作是困难重重的。D符合题意。故选D。

知识点：阅读理解四选一英语专业基础知识阅读理解教师招聘-小学英语