在如下方框图中，产生正弦波振荡的相位条件是ΦF=土ΦA。https://p.ananas.chaoxing.com/star3/190_190c/51b78a1144fa0cccbecadc36cdb83483.jpg?rw=3264&rh=1616&_fileSize=3984598https://p.ananas.chaoxing.com/star3/origin/51b78a1144fa0cccbecadc36cdb83483.jpg?rw=3264&rh=1616&_fileSize=3984598
举一反三
- 以下说法正确的是 https://p.ananas.chaoxing.com/star3/origin/32620d45b840963fcfd2a9e499329436.png https://p.ananas.chaoxing.com/star3/origin/be2489a6491756903a1a67528363e754.png https://p.ananas.chaoxing.com/star3/origin/c5d98544629d58d5c134ed8bc9743922.png https://p.ananas.chaoxing.com/star3/origin/eef7c4f0c58f9f292270fbd5e9600bd3.png
- https://p.ananas.chaoxing.com/star3/origin/b31898e8d988e836116efe3cba9a910f.pnghttps://p.ananas.chaoxing.com/star3/origin/fb8dc50d75c1b761d9389a77bc20b4fd.pnghttps://p.ananas.chaoxing.com/star3/origin/7e75cd17522334f54b2eaedb009dba9a.png
- 在 中, , ,则 等于https://p.ananas.chaoxing.com/star3/origin/98366284d8feecd580613938380206ea.pnghttps://p.ananas.chaoxing.com/star3/origin/526e25c58361a406de96a44862df7aba.pnghttps://p.ananas.chaoxing.com/star3/origin/04970d84ab61ade1077625be94ccdd96.pnghttps://p.ananas.chaoxing.com/star3/origin/7a34359614a39bd8fbffa909e85a630f.png
- 设是圆,则https://p.ananas.chaoxing.com/star3/origin/d8b5edc9a2457c461a3685877f8606ab.pnghttps://p.ananas.chaoxing.com/star3/origin/5f3c1256fa1597901980dc868dfb57f7.pnghttps://p.ananas.chaoxing.com/star3/origin/1932e2a8e9452d4d6f94177a0ca40384.pnghttps://p.ananas.chaoxing.com/star3/origin/5785decddcc5b175015fc7c46d4d8405.png
- ,当在连续时,___https://p.ananas.chaoxing.com/star3/origin/2d7d11725699807cb0b07057a0e6aa1b.pnghttps://p.ananas.chaoxing.com/star3/origin/8afd799308433cf0c1bf99426a50b068.pnghttps://p.ananas.chaoxing.com/star3/origin/6fc93eeaca0b4e2eeb3232571be04039.pnghttps://p.ananas.chaoxing.com/star3/origin/9ac20ba1a54c062278a4c0602f36ab4c.png