试题正文
The methods used in storing the seeds show that
选择一项：
a.
some seeds are damaged when X-rayed.
b.
some of the plant species develop into healthy plants.
c.
some species cannot be stored by regular means.
d.
all seeds can be preserved for many years.
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Ваш ответ верный.
正确答案是：some species cannot be stored by regular means.