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

A．So hot did the weather become

B．So became the hot weather

C．Hot the weather became so

D．So hot became the weather

突然出现的呼吸困难，并且一侧呼吸音消失见于（）

A.急性心肌梗死

B.急性左心衰

C.支气管哮喘

D.气胸

E.急性支气管炎