一产妇分娩后一直卧床，3周后起床活动时突然出现头晕、心慌、紫绀、呼吸困难，紧急抢救后脱离危险，X线检查发现右肺大片阴影。

应首先怀疑（）

A.急性肺炎

B.肺结核

C.肺癌

D.肺栓塞

E.异物吸入

Tony will never forget the days _____ he lived in China with his mother,_____ has a great effect on his life.[ ]

A. that ; which

B. when ; which

C. which ; that

D. when ; that