某往复活塞压缩机的工作压力为12MPa,它属于()压缩机。
A.高压
B.中压
C.低压
D.常压
参考答案:A
He held out his fist before the young man and tried to anger him ______. [ ]
A. for purpose
B. on purpose
C. in purpose
D. by purpose
古诗文填空。(5题限选4题)
(1)霓为衣兮风为马,云之君兮纷纷而来下。____________,____________。(李白 《梦游天姥吟留别》)
(2)燎沉香,____________。鸟雀呼晴,____________。( 周邦彦《苏幕遮》)
(3)五更鼓角声悲壮,____________。野哭千家闻战伐,____________。( 杜甫 《阁夜 》)
(4)廊腰缦回,____________;各抱地势,____________。(杜牧《阿房宫赋》)
(5)搴汀洲兮杜若,将以遗兮远者;____________,____________。(屈原 《湘夫人》)