肺动脉高压的诊断标准为（） A.肺动脉平均压≥20mmHg B.肺动脉收缩压≥3

男性，38岁。间隙性上腹部隐痛伴吐酸水4年，今晨突发上腹剧痛，呈刀割样。查体：上腹及右下腹压痛、反跳痛明显，轻度腹肌紧张，肠鸣音减弱。血常规：白细胞及中性粒细胞均升高。

治疗应采取（）

A.暂时保守治疗

B.立即行剖腹探查

C.输液，对症治疗

D.保守治疗无效，再考虑剖腹探查

E.全身情况好转后，再考虑剖腹探查

句子转换。

1. I cleaned my room yesterday.(就划线部分提问)

   __________ you ____________ yesterday?

2. Her vacation was great. (就划线部分提问)

   __________ ___________ her vacation?

3. Jim went to the library last night.(改为一般疑问句)

  __________ Jim __________ to the library last night?

4. They went back to the hotel on foot last night.(同义句转换)

    They ____________ back ___________ the hotel last night.

5. She did her homework last night.(改为否定句)

   She __________ ____________ her homework last night.

This second-hand computer is much ________ than that new one.

A. cheap                     B. cheaper                        C. cheapest

锶或钡的氧化物、氢氧化物

患者，男，89岁。久病卧床，近日来冷汗自出，四肢厥逆，面色苍白，舌淡苔白，脉微欲绝。用药应首选的药物是（）。

A.肉桂、桂枝

B.干姜、高良姜

C.附子、干姜

D.细辛、小茴香

E.吴茱萸、丁香