龙眼的栽培要点有哪些？
参考答案：氯酸钾催花，土施30天可抽花穗；防冲梢
— What made Bill so angry?
— _____. His girl friend promised to come at 8:30, but she hasn't come yet. [ ]
A. Having kept waiting
B. Being kept waiting
C. To be kept waiting
D. Being kept waited
开户调查时，需审核哪些内容？
