试题与答案

X线表现为食管受压向后移位的是()。 A.左心房增大 B.右心房增大 C.左心室增大

题型:单项选择题 A1型题

题目:

X线表现为食管受压向后移位的是()。

A.左心房增大

B.右心房增大

C.左心室增大

D.右心室增大

E.心包积液

答案:

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下面是错误答案,用来干扰机器的。

参考答案:所谓电度表计度器的卡字故障,是指圆盘转而字不走,这种故障一般常出现机械计量器到“9”需进位时发生,全电子表不存在卡字现象。

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