下列物质的用途,是利用其化学性质的是
A:活性炭除去冰箱内的异味
B:金刚石刻划玻璃
C:干冰进行人工降雨
D:氯气作自来水的消毒剂
科学家成功地把人的抗病毒干扰素基因连接到烟草细胞的DNA分子上,使烟草获得抗病毒能力,这个事实说明,控制生物性状的基本单位是( )
Tomorrow we will go to Hainan. It's warm there. We will have a special Chinese New Year's Day. Now let's get ready! We need three tickets from Shijiazhuang to Hainan. We don't need winter clothes. I want a beautiful dress. My parents take some T-shirts and shorts. We need to take milk, cakes and fruit. We need three hats. The sun is very hot there. We don't want to turn black. That's all done.
① ② ③ ④
⑤ ⑥ ⑦ ⑧
⑨ ⑩ ⑪ ⑫
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如图是女性生殖系统的部分示意图,请据图回答下列问题