Overgreasing of ball bearings installed on pumps will result in ().
A. smoother pump operation
B. overheating of the bearing
C. reduced corrosion in the bearing
D. increased pump capacity
60岁,男性,MRI示脑内多发异常信号且有明显环形增强,伴灶周水肿,首先考虑()
A. 脑血管瘤
B. 急性播散性脑炎
C. 病毒性脑炎
D. 边缘性脑炎
E. 肺癌脑转移
凡体温高于39°C以上者,应给予物理降温,以降低(),缓解脑缺氧,减轻脑水肿。
保育员对幼儿的不正确的姿势要做到及时(),及时()。