输送介质温度大于200℃的机泵进行冷却时,冷却水进入各冷却部位应采取串联方式。
参考答案:错
解析:输送介质温度大于200℃的机泵进行冷却时,冷却水进入各冷却部位应采取并联方式。
Mary is sure to find us easily, for she has a very good sense of____.[ ]
A.direction
B. humor
C. feeling
D. memory
环磷酰胺对何种肿瘤疗效最显著()
A.卵巢癌
B.急性淋巴细胞性白血病
C.肺癌
D.多发性骨髓瘤
E.恶性淋巴瘤