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【判断题】
球笼式万向节星形套与主动轴用接在一起,星形套外表面有四条弧形凹槽滚道____。中A.
正确
B.
错误
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【简答题】化疗药物漏出静脉外,你应如何处理?
【简答题】复习巩固面料再造设计的常用表现手法--二次印染,尝试蜡染、扎染、手绘等技法。 点染、浸染的技法尝试:预设效果(设计好图案、效果等)用面巾纸、餐巾纸等纸张学习这两种技法,并反复尝试,并拍照留存,选取四张照片上交。(P上自己姓名)
【单选题】If the expansion of the size of a firm is responsible for a decline in average cost, then _______ are present.
A.
internal scale economies
B.
external scale economies
C.
product differentiations
D.
constant returns to scale
【单选题】关于单克隆免疫球蛋白，下列哪项是错误的
A.
是人体受抗原刺激后，由不同浆细胞产生的
B.
是一种异常的免疫球蛋白或其片段
C.
多不能检出抗体活性
D.
多见于恶性浆细胞疾病
E.
也可见于淋巴细胞恶性增生性疾病
【单选题】If the superheat value of a thermostatic expansion valve is set too low, the _.
A.
the suction line will be abnormally cold and liquid may slug back to the compressor
B.
the suction line will be hot due to a reduced amount of refrigerant returning to the compressor
C.
the temperature of the refrigerant within the condenser will remain the same
D.
the temperature of the refrigerant passing through the sub-cooler will decrease
【单选题】If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a ______.
A.
loss of suction in the circulating pump
B.
leak in the primary cooling system
C.
broken raw water pump shaft
D.
burned or cracked piston in one cylinder
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