小麦越冬前田间管理的中心任务是,促使全苗、匀苗、齐苗和()
A、旺苗
B、壮苗
C、弱苗
D、一般苗
参考答案:B
肾虚头痛的特点是()
A.痛如锥刺
B.头痛如裂
C.头痛且空
D.头痛眩晕
E.头痛如裹
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A.Yes,I will.
B.That’s great.
C.I’m afraid I won’t be free.
D.Is it all right?