[多项选择]单位工程施工组织设计中所设计的技术组织措施应该包括( )。
A. 降低成本的措施
B. 节约工期的措施
C. 季节性施工措施
D. 防止环境污染的措施
E. 保证资源供应的措施

{{B}}Questions 47 to 56 are based on the following passage.{{/B}}
The researchers put all the plants in a greenhouse to grow under normal conditions for forty days. Then, for fifteen days after that, the plants did not receive any{{U}} (47) {{/U}}. The normal plants lost their green color. Finally, they lost their leaves. But the researchers say the{{U}} (48) {{/U}}plants kept their leaves and their{{U}} (49) {{/U}}.
After the fifteen dry days, all the plants were watered again for a week. The transgenic plants returned to{{U}} (50) {{/U}}growth, and their seed production was close to normal But the other plants all died.
Rosa Rivera says the transgenic plants kept a{{U}} (51) {{/U}}high water level. They also{{U}} (52) {{/U}}to produce energy during the dry period, although at a reduced level. The amount of seeds they produced was close to normal. In addition, the researchers found that the plants could{{U}} (53) {{/