水稻白叶枯病,以下防治药物不符合的是()。
A.叶枯唑
B.农用链霉素
C.克菌壮
D.代森锰锌
参考答案:D
Although many great people ever failed, they never_______ and managed to succeed.
A.set out
B.stayed up
C.kept on
D.gave up
尿素可以用来做水稻苗床基肥。