经济增长的必要条件是()。
A.社会制度的调整
B.意识形态的相应调整
C.技术进步
D.以上都不正确
参考答案:C
— When do you usually have your class meeting?
— We have it _____ of every week. [ ]
A. by the end
B. at the end
C. in the end
D. to the end
在出口发票上必须明确显示数量、单价、总值和贸易术语(价格条款)等。 ( )