TCD检测器的热导池结构分为（）。
A.直通式
B.半直通式
C.扩散式
D.半扩散式
参考答案：A, C, D
-Do you know the boy________ is sitting next to Peter?
-Yes. He is Peter's friend. They are celebrating his ________ birthday.
A．who; ninth
B．that; nineth
C．/; nineth
D．which; ninth
发热程度分类为：低热、中等高热、（）及（）。
