问题
单项选择题
马铃薯纺锤形块茎病的病原体是（）。
A、病毒
B、类病毒
C、拟病毒
D、朊病毒
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
马铃薯纺锤形块茎病的病原体是（）。
A、病毒
B、类病毒
C、拟病毒
D、朊病毒
参考答案：B
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