综合增温措施,保证6月份水稻分蘖期入田水温15℃以上,7月份水稻长穗期入田水温17℃以上,减数分裂期入田水温()℃以上,8月份水稻结实期入田水温20℃以上。
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START研究中,儿童组接受布地奈德治疗以什么为评定指标()
A. 研究终点的身高
B. HPA轴
C. 研究终点的体重
D. FEV1
One major disadvantage of a low-speed diesel as compared to a steam main-propulsion system is().
A. the extra weight required for the diesel reduction gearing
B. a minimum speed for the engines that limits the minimum speed of the vessel
C. the higher fuel consumption per SHP
D. the low efficiency of the system when a controllable pitch propeller is used