刮板输送机的机头机尾必须打牢锚固支柱.()
参考答案:对
When the man was trying to break into the bank, he was caught by the police__________.[ ]
A. in a spot
B. on the spot
C. off the spot
D. to the spot
春秋时期,齐、晋两国能够迅速强大的共同原因是()
①政治上,改革内政
②经济上,发展生产
③军事上,加强军队建设
④用人上,都有贤相辅佐,如管仲、伍子胥
⑤都打出了“尊王攘夷”的旗号
A.①②③④⑤
B.①②③④
C.①②③
D.①④⑤