散热器组由水箱、（）、和支架组成。
参考答案：变矩器油散热器
人文社会科学的社会功能，是指（）。
--- Liu Tao has never read the book The Adventure of Tom Sawyer , _________ he?
--- _________. He told me it's very interesting. He'd like to read it again.
A．is; No, he isn't
B．has; Yes, he has
C．isn’t; Yes, he is
D．hasn’t; No, he hasn't
