题目内容

谷子白发病病菌以____越冬。

A. 菌丝体
B. 菌核
C. 卵孢子
D. 分生孢子

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关于谷子白发病下列叙述正确的是____。

A. 不同品种对白发病抗病性差异不明显。
B. 播种早而深,发病轻。
C. 凡不利于幼苗出土的因素有利于发病。
D. 温暖潮湿再侵染引起的发病就重。

谷子白发病在各个生育期和不同器官上呈现出不同症状,分为____、____、____、____、____、____。

谷子白发病由于不同病菌侵染呈现出芽腐、灰背等不同症状类型。

A. 对
B. 错

After Emerson's father died, he mother send him to University of ( 1 ). As a young man, Emerson was strongly ( 2 ) by a remarkable aunt of his, Mary Moody Emerson, who though ( 3 ) , had read everything from Shakespeare to the romantics, and it formed a unique religious perspective based on ( 4 ), ( 5 ) and literature, that would resonate powerfully in the life and work of her nephew.

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