问题

According to this science report, a living cell can be _____for a thousand years at -130℃.

A: spared
B: protected
C: preserved
D: developed

正确答案是：

同类题型

Great changesinChina in the past 20 years.

下列句中加点的字解释不正确的一项是

Is that an eraser —___________.

I $300 for the bike.

Little _____about her own safety, though she was in great danger herself. [ ]