化学杀菌剂对繁殖体
A．有效B．无效C．根据药品D．根据pHE．根据环境
参考答案：A
—Hello, this is Amy. Is Tom there?
—___________________
A．Speaking.
B．This is me.
C．This is she.
D．This is you.
诊断需首先考虑
A．胆囊结石
B．胆管结石
C．慢性胆囊炎
D．慢性肝炎
E．胆管癌
