稻纹枯病的盛发期为()。
A.秧苗期
B.乳熟期
C.抽穗期
参考答案:C
水痘以 ,皮肤黏膜分批出现, 、 、 同时存在为主要特征。
When drawing multilevel data flow chart of top—down, the balance between parent chart and son chart must be taken into account, and to pass judgment for the balance of the charts is regularly maintained by( ).
A.output data
B.data dictionary
C.processing number
D.input data