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问题 单项选择题

差压变送器是测量工艺管道或罐体中介质的（），并且通过数据的转换、开方将测量的差压值转换成电流信号输出。

A、流速差

B、质量差

C、速度差

D、压力差

答案

参考答案：D

单项选择题

Mr. Smith has had a cast applied to his arm as an outpatient in the emergency room. Which of the following home care instructions should the nurse advice for his cast care

A．Use a ruler to reach inside and scratch under the cast.

B．Apply a heating pad to the arm for 24 hours after the injury.

C．Use powder on the skin around the cast.

D．Smell the cast for foul odors.
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单项选择题 A1型题

关于鲤春病毒血症病理特征叙述错误的是（）

A.肝脏充血、坏死

B.胰腺有炎症和坏死病灶

C.感染细胞肿大，脾脏和肾脏坏死

D.肾小管堵塞，出现空泡和透明化
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