下列不属于农家肥的是 [ ]
A．家禽的粪便
B．家禽的粪尿
C．人的粪尿
D．购买原尿素
D
When we got there, he was about to leave. So he only had time to explain _____ to us how he _____ our plan. [ ]
A. impatiently; like
B. repeatedly; thought about
C. carefully; thought of
D. roughly; found
