If the speed of a turbocharged diesel engine is maintained constant the turbocharger speed
A. decrease until the engine speed increases
B. increase as the load increases
C. decrease as the load
D. increases remain unchanged
治疗痒螨病的药物是
A. 伊维菌素
B. 丙硫咪唑
C. 砒喹酮
D. 地克珠利
E. 磺胺嘧啶
下列哪种急腹症可不行CT检査()
A. 肠梗阻
B. 胃肠道穿孔
C. 急性胰腺炎
D. 全腹膜炎
E. 急性消化道大出血
蒸发是废水处理的重要手段,能处理含盐量较高的废液,蒸残液含盐量可达()g/L。
A. 100-200
B. 200-300
C. 300-400
D. 400-500