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【单选题】
人工气腹对心血管系统的影响正确的是（）A.
腹内压低于10mmHg时，中脉压升高
B.
腹内压高于10mmHg时，中脉压升高
C.
机械通气使用PEEP有助于减轻高腹内压引起的回心血量下降
D.
快速充气容易刺激腹膜牵张感受器，引起心率增快
E.
以上都不对
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【单选题】下列关于硬盘的说法中,正确的是___。
A.
硬盘通常安装在主机箱内，所以硬盘属于内存
B.
突然断电后，保存在硬盘中的数据将全部丢失
C.
硬盘必须通过相应的接口电路才能跟主机相连
D.
硬盘中保存的数据可以直接被调入CPU中进行处理
【简答题】根据你听到的一篇长对话，回答1-2小题。 1. What is Peter doing? A. Writing book B. Writing a composition in English C. Having an English class 2. What time does class begin? A. At 13: 15 B. At 13: 25 C. At 13: 10
【单选题】—What is Peter doing at 7:30 in the morning? —He __________ breakfast with his family.
A.
is having
B.
are having
C.
is have
D.
has
【单选题】—What is Peter doing at 7:30 in the morning?
A.
e __________ breakfast with his family。
B.
is have
C.
is having
D.
has
E.
are having
【简答题】听下面一段对话，回答第1-2小题。 1. What is Peter doing now? A. He is doing his homework. B. He is going to the library. C. He is reading a book. 2. Where did Peter go last Monday? A. He stayed at home. B. He went t...
【单选题】What is Peter doing?
A.
He is interviewing Pauline.
B.
He is interrogating Pauline.
C.
He is interpleading Pauline.
D.
He is interrupting Pauline.
【单选题】— What is Peter doing at 7:30 in the morning? — He __________ breakfast with his family.
A.
is have
B.
is having
C.
has
D.
are having
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