单项选择题
A.directional current B.forward current C.propeller current D.wake current
欧阳修是（）词人。A.豪放派B.边塞派C.田园派D.婉约派
单项选择题欧阳修是（）词人。
A.豪放派 B.边塞派 C.田园派 D.婉约派
Leaking oil seals on a diesel engine turbocharger can c...
单项选择题Leaking oil seals on a diesel engine turbocharger can cause（）
A.the engine to run after the fuel has been secured B.the engine to over-speed C.a fire D.all of the above
浓度越高，药物的作用越强，故用95%的乙醇消毒，效果更好。
判断题浓度越高，药物的作用越强，故用95%的乙醇消毒，效果更好。
