氧气瓶、乙炔瓶使用及存放时间的间距应不小于()m。
A.1
B.2
C.4
D.5
参考答案:D
_____his bookishness, curiously little is known about the world view of Gordon Brown, the first British
Prime Minister, said to be a real intellectual in decades. [ ]
A. Though
B. As
C. In spite that
D. Despite
每种打印机设置的对话框()
A、相同
B、不同
C、不确定
D、一定