题目内容

反流性食管炎导致的胸痛多表现为()

A. 撕裂痛
B. 刀割样
C. 绞窄性
D. 烧灼痛
E. 胀痛

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Just after stopping the engine while the oil is still circulating.Check that uniform oil jets appear from all the oil outlet grooves in the crosshead bearing lower shell and the guide shoes.The oil flow from () must be compared from unit; there should be a similarity in the flow patterns.

A. the piston cooling oil return pipes
B. the main and crankpin bearings
C. thrust and intermediate bearings
D. stern tube and thrust bearing

简述服装设计的适用价值。

以下哪些是利用到除尘作用的装置()

A. 装煤时高压氨水
B. 熄焦塔
C. 循环氨水
D. 布袋除尘器

反映肾小球滤过功能早期受损的试验是()

A. 内生肌酐清除滤
B. 尿浓缩试验
C. 血清尿素测定
D. 血清肌酐测定
E. 尿酸测定

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