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【简答题】
以下A、B、C图分别表示三种不同类型的生物细胞，D图表示发生在某生物细胞中的生理活动示意图，请回答： (1)A、B、C中，能够发生图D所示生理活动的细胞是图________________。A、B所示细胞和C的主要区别是：A、B___________________。 (2)所代表的生物遵循孟德尔遗传定律的是图_____。C图中能够发生碱基互补配对的细胞器是_______。 (3)事实上，图B所示细胞处于________状态。图B构成的组织不能作为鉴定还原性糖的理想实验材料，原因是_______________。
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【简答题】People used to hear about breaking news form newspapers, but now the largest amount of U.S. s get news from 1___ __ ___. People are frequently directed to news sites from 2__ ___ ___. There has a...
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【单选题】楼地层为什么分别叫楼板层和地坪层?
A.
因为楼板层包括了地坪层
B.
因为二者构造不同,地坪层要考虑防潮,楼板层不需要考虑防潮
C.
因为二者构造不同,地坪层要考虑防潮,楼板层局部需要考虑防潮
D.
因为二者构造不同,地坪层不需要考虑防潮,楼板层要考虑防潮
【单选题】What attracted them to go into this shop?
A.
The black shoes at the back.
B.
The green shoes at the back.
C.
The boots at the back.
D.
The boots near the window.
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