A backlash below a lock is defined as（）. ["a current setting your vessel on the wall","a current setting into the lock chamber","an eddy working along the lower guide wall","a current setting counterclockwise"]
The （）should be kept running for about half an hour after FWE. ["crankcase lubricating oil pump","fuel oil pump","air compressor","auxiliary blower"]
九年义务教育小学语文课本的特点包括（）。 ["体现时代精神，重视教材的思想性。","适当降低要求和难度，突出教材的基础性。","改进教材编排，加强语文基本功训练的系统性。","注意体现训练过程，加强学习能力的培养。"]
在Windows桌面上，乱七八糟的图标是可以靠某个菜单选项来排列整齐的。
生理成熟的种子与形态成熟的种子有何区别？
球果、干果和肉质果形态成熟表现出什么特征？
