测量某[tex=4.214x1.286]qKjKBzdmW/ITuG9cPkOeAg==[/tex]的漏源电压，栅源电压值如下，其[tex=1.714x1.286]gmU2cywKcS1DaSpFogJmLOfKfEj/vnXmYqY7BTDW6tw=[/tex]、[tex=1.714x1.286]MiBX2R3sOmrGI3PeNzQKOA==[/tex]或[tex=1.714x1.286]f4w775SJShLfoONc1jaLqKJSuRYTv5bCFH/Q2ovkveg=[/tex]、[tex=1.643x1.286]/2s7vN1oMPbbT/Y9GCfZvGRycswIF6JpCppqWFqjqP8=[/tex]值也已知，试判断该管工作在什么区域（饱和区，可变电阻区，预夹断临界点或截止）．（1）[tex=4.214x1.286]8SD38C5H6Pkfvgha7I6rKjbeMcm/vL0o7/KMw7OpA9U=[/tex]，[tex=4.214x1.286]H6zzvoZisDZe1McHFZkBr6rbb0ar6IQAOrLj/uKkaxA=[/tex]，[tex=4.286x1.286]jPrP7Dm+L0eyLbIiCQP6fsedC2njLWAeBxv+ytEoOrI=[/tex]；（2）[tex=4.214x1.286]8nuYq1mduhna8bQxNFkkwMSdDbagXxZxzPGqESyB1VY=[/tex]，[tex=4.214x1.286]H6zzvoZisDZe1McHFZkBr6rbb0ar6IQAOrLj/uKkaxA=[/tex]，[tex=4.286x1.286]jPrP7Dm+L0eyLbIiCQP6fsedC2njLWAeBxv+ytEoOrI=[/tex]；（3）[tex=4.214x1.286]8SD38C5H6Pkfvgha7I6rKjbeMcm/vL0o7/KMw7OpA9U=[/tex]，[tex=4.214x1.286]b8wKa/NhkzYs3u8hGi+FcxSO39+sESiP5+ulHQMVZxw=[/tex]，[tex=5.071x1.286]JkpD9eT6fbY4VziDQ5+LO69kMgJBSIC6vdgTt3mDv7Q=[/tex]；（4）[tex=4.214x1.286]ms1eWg8OF9Fbjcm+LlB0f03ZC9bpjTR9Z18AGnYZBE4=[/tex]，[tex=4.929x1.286]tGrINwizd1Wo84zjHZOeR8uw2m3hu+7xo3+IFd2dwOc=[/tex]，[tex=5.0x1.286]G9oz9SJxdG9aKRI0KoJjyiSvN7B3QvaHTnl7tLpWuCo=[/tex]；（5）[tex=4.929x1.286]Ahkc3//EHhFGedaIZADnOGHaG6eTfXgybAeFgFs11Xc=[/tex]，[tex=4.929x1.286]ZUmStY4OdFbAmDhtsHopyZliLDML30pAvEz9xnwoIFI=[/tex]，[tex=5.0x1.286]UeW67MvHjoVPxTLW839dv2oNhDgUe4k7+sWsocYFSNI=[/tex]；（6）[tex=4.214x1.286]8SD38C5H6Pkfvgha7I6rKjbeMcm/vL0o7/KMw7OpA9U=[/tex]，[tex=4.929x1.286]PmsYa0xjvHnECUYQjpPw+4DfkbK5SEKoIzf+i3joIxM=[/tex]，[tex=5.0x1.286]UeW67MvHjoVPxTLW839dv2oNhDgUe4k7+sWsocYFSNI=[/tex]；（7）[tex=4.929x1.286]Ahkc3//EHhFGedaIZADnOGHaG6eTfXgybAeFgFs11Xc=[/tex]，[tex=4.929x1.286]YSrUmXECiQE8FPztoRorqexE+Snq5qSNksW7VcDtLzI=[/tex]，[tex=5.786x1.286]UeW67MvHjoVPxTLW839dv3OmtD6MilA0ASNalTuA7LA=[/tex]．