微音器灵敏度低,会导致液面曲线波测不清。()
参考答案:对
—Jack, this is the third time that you have been late this week.
—Sorry, sir, but I was help ________ for 15 minutes on the way here in the traffic jam.
下列患者中,不适合牙髓电测的是
A.冠心病患者
B.糖尿病患者
C.装心脏起搏器患者
D.高血压病患者
E.癫痫病患者