熨烫衣物的间隙,应将电熨斗平放在干燥的棉织物上。
参考答案:错
—I called you yesterday evening, but there was no answer.
—Oh, I am sorry. I ____ dinner at my friend's home. [ ]
A. have
B. had
C. was having
D. have had
买入套期保值是指套期保值者先在期货市场上买入与其将在现货市场上( )的现货商品数量相等、交割日期相同或相近的该商品期货合约。
A.买入
B.卖出
C.加工
D.生产