2008年被纳入世界自然遗产的三清山位于中国的哪个省份？（）
A.福建
B.江西
C.河北
参考答案：B
Not a single word ________ about the way he was treated, but his unhappiness was revealed through his expression.
A．he said
B．he has said
C．did he say
D．said he
气动执行器的气源管上，一般应装有（）和（）。
