右图为DNA分子片段的结构模式图,据图回答下列问题:
立DNA分子结构模型的科学家沃森和克里克提出DNA分子的空间结构是()
参考答案:双螺旋(结构)
—Hi, Jim. What about the weather in London?
—Terrible! ______. So I have to stay at home. [ ]
A. It's rainy
B. It's sunny
C. It's cloudy
D. It's fine
司马光