检查慢性根尖周炎最好用()
A．电诊法
B．X线检查
C．咬诊
D．化学刺激
E．温度刺激
参考答案：B
解析： X线可了解根尖及根管情况。
There _ no time to have breakfast. [ ]
A. have
B. was
C. had
D. were
