______ in March,  that so many people had on their light wears.

A．So hot became the weather

B．So became the hot weather

C．The hot weather became so

D．So hot did the weather become

______是货物的承运人或其代理人收到货物后，签发给托运人的用以证明货物已由承运人接管并装上船的凭证。

A．清洁提单
B．备运提单
C．海运提单
D．转船提单