用所给单词的适当形式填空。

1. Jenny is going _____________ (buy) something outside.

2. I _____________ (eat) four eggs this morning.

3. Li Ming never _____________ (take) a bus to school.

4. Look! They are _____________ (put up) the Christmas tree.

64岁女性，胸骨后疼痛并恶心、胸闷2h，胸痛与呼吸动作无明显相关，平时无反酸、胃灼热，有冠心病、高血压病、糖尿病史。

若根据上述检查不能排除主动脉夹层动脉瘤，有助于进一步确定诊断的检查是

A、通气／血流比值

B、C反应蛋白

C、胸部CT平扫

D、胸部CT增强

E、连续血压监测