Mike lives in Zhengzhou of China. But he is from Canada. He is 12 years old this year. He speaks English. And he speaks Chinese a little. Mingming is his good friend. He is a Chinese boy. He often goes to the English Corner. He likes to speak English there. It helps him with English. Of course(当然), he often helps Mike with Chinese. Mike has a pet at home. It is a dog. He likes it very much. The name of it is Wangwang. Mingming likes it, too. So he often plays with Wangwang in Mike’s home.

小题1:Where is Mike from?

A．China

B．Canada

C．England

D．America小题2:Who helps Mike with Chinese?

A．Mingming

B．Wangwang

C．Mike’s teacher

D．Mike’s mother小题3: What’s the name of Mike’s pet?

A． Mike

B．Mingming

C．Wangwang

D．Mimi小题4: Where does Mingming play with Wangwang?

A．in the English Corner

B．in Mike’s home.

C．in Mingming’s home.

D．in the school

我某公司与英商按CIF伦敦签约，出口瓷器1万件，合同与信用证均规定“装运期3月份—4月份，每月装运5000件，允许转船”。我方于3月30日将5000件装上"东风”轮，取得3月30日的提单，又在4月2日将余下的5000件装上“风庆”轮，取得4月2日的提单，两轮均在香港转船，两批货均由“曲兰西克”一轮运至目的港。

请问：

卖方能否安全收汇为什么？