[问答题] 请简述对于生产杂交种的种子田，应进行哪些田间检验项目的检查？

6KV接地刀闸的闭锁有哪些？ 以下的（）是Photoshop 中没有的通道。  [" 彩色通道","Alpha 通道"," 专色通道","路径通道"] You use Microsoft .NET Framework 4 to create a Windows Forms application.  You plan to use a Windows Presentation Foundation (WPF) control of the UserControl1 type hosted in an ElementHost control named elementHost1.  You write the following code segment. (Line numbers are included for reference only.) You need to ensure that the application changes the background color of the hosted control when the background color of the form changes.   Which code segment should you insert at line 05?（） ["","","",""] 必须加强对警察权力的制约，是因为警察权力具有（） ["二重性","公共性","扩张性","强制性","法定性"] 甲因涉嫌抢劫被公安机关依法逮捕，在侦查期间，甲不讲真实姓名、住址，身份不明。对此公安机关下列处理方式中正确的是。（） ["侦查逮捕期间自查清甲的真实身份之月起计算","在查清甲的身份以前，停止侦查活动","在查清甲的真实身份以前，不允许甲聘请律师为其提供法律帮助","如果犯罪实施清楚，证据确实、充分，可以按甲自报姓名移送人民检察院审查起诉"] 请简述对于生产杂交种的种子田，应进行哪些田间检验项目的检查？