试题正文
The methods used in storing the seeds show that
选择一项：
a.
some species cannot be stored by regular means.
b.
some of the plant species develop into healthy plants.
c.
some seeds are damaged when X-rayed.
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.