【名词&注释】
正确答案:B。A.热疲劳裂纹 B.机械疲劳裂纹 C.接触疲劳裂纹 D.蠕变 更多海船船员的考试资料下载及答案解析请访问不凡考网职业技能鉴定考试频道。
[单选题]活塞冷却侧的裂纹是_______
A. 热疲劳裂纹
B. 机械疲劳裂纹
C. 接触疲劳裂纹
D. 蠕变
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举一反三：
[单选题]急性失血超过总血量的多少，血压就会下降，引起休克______。
A. 1/5
B. 1/4
C. 1/3
D. 1/6
[单选题]The process during which liquid containing a reasonable amount of sensible heat at a particular pressure immediately changes into steam after admitted to a chamber at a lower pressure is called _____.
A. boiling off
B. flash evaporation
C. condensation
D. none of the above
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