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