正弦交流电路发生串联谐振时，电路中的电流与电源电压间的相位关系是（）。
A、同相位；
B、反相位；
C、电流超前；
D、电流滞后。
参考答案：A
用take短语的适当形式填空。
1. For a long time I had wanted to _____ writing.
2. He _____ Mary as soon as they met.
3. Would you like me to _____ the driving for a while?
4. Her face _____ a new expression.
5. He _____ his glasses and looked up.
6. Don't be_____ by his promises.
7. He _____ everything the teacher said.
以下哪项属于实施企业文化评价工程的重点内容（）
A、加强企业文化先进人物评选表彰
B、加强企业文化模范标兵评选表彰
C、加强企业文化建设和管理评选表彰
D、加强企业文化宣传和管理评选表彰
