—_______.  

—It was October 9th. [ ]

A. What was the date yesterday?  

B. What day was it yesterday?

C. What time was it?  

D. How far was it?

女，20岁。发热、心前区疼痛2天，向颈、肩部放射，吸气和卧位时加重，伴气促。体检：体温39度，血压160/76mmHg，心率110次/分，律齐，心音弱。心电图示：各导联ST段普遍抬高，最可能的诊断是（）

A.肺炎

B.急性心包炎

C.急性心肌梗死

D.急性胸膜炎

E.肺栓塞