下列不属于减少截流难度技术措施的是( )。
A．加大分流量，改善分流条件
B．改善龙口水力条件
C．加大截流施工强度
D．下闸截流
参考答案：D
---- Is it convenient for you if I come to see you at 4:00 this afternoon?
---- I’m afraid not. I _____ a meeting then.
A．will have had
B．am about to have
C．will be having
D．was having
