下列（）是可通过种子传播的。
A.小麦散黑穗病
B.红苕黑疤病
C.玉米丝黑穗病
D.稻瘟病
E.水稻白叶枯病
参考答案：A, B, C, D, E
横线里最大能填几？
3×______＜19
______×4＜31
7×______＜30
______×5＜32．
Lewis was much admired ______ his work on the advanced medical research.
A．on
B．in
C．for
D．with
