船舶搁浅后不得盲目使用车舵,其目的是()。
A、便于排水堵漏
B、防止船体变形
C、防止打伤车舵、扩大损失
参考答案:C
A client’s chest X-ray reveals bilateral white-outs, indicating adult respiratory distress syndrome (ARDS). This syndrome results from()
A. cardiogenic pulmonary edema.
B. respiratory alkalosis.
C. increased pulmonary capillary permeability.
D. renal failure.
某油缸活塞面积为7³10-3m2,进油流量为4.9³10-4m3/s,该活塞运动速度为()。
A.0.7m/s
B.7cm/s
C.1/7m/s
D.7m/s