当电动机带动齿轮泵不断旋转时，轮齿脱开啮合的一侧，由于密封容积变大则不断地从油箱中（）。
参考答案：吸油
Jim ______ English very well, _____ she doesn't know Chinese. [ ]
A. speaks; and
B. talks; and
C. speaks; but
D. talks; but
急进性肾炎，肾活检最可能
A．肾小管坏死B．局灶性节段性硬化C．肾小球系膜增生D．肾小球广泛新月体形成E．以上都不是
