逻辑运算符在运算时的优先顺序是()
A.NOT→AND→OR
B.AND→NOT→OR
C.OR→NOT→AND
D.从左至右按先后次序
参考答案:A
You _____ your father. [ ]
A. look
B. like
C. looks like
D. look like
电解质分析仪电极系统是测定样品的关键,它包括()
A.PO2电极
B.指示电极
C.参比电极
D.PCO2电极
E.铂电极