• 2022-06-15 问题

    在圆o中,弦ab垂直cd,垂足为e,ae=2,eb=6,ed=3,ec=4,求圆o的直径.

    在圆o中,弦ab垂直cd,垂足为e,ae=2,eb=6,ed=3,ec=4,求圆o的直径.

  • 2022-06-15 问题

    如图,BD为⊙O的直径,点A是弧BC的中点,AD交BC于E点,AE=2,ED=4。(1)求证:△ABE∽△ABD;

    如图,BD为⊙O的直径,点A是弧BC的中点,AD交BC于E点,AE=2,ED=4。(1)求证:△ABE∽△ABD;

  • 2022-05-27 问题

    可靠安全系数是指() A: LD/ED B: ED/LD C: LD/ED D: LD/ED E: ED/LD

    可靠安全系数是指() A: LD/ED B: ED/LD C: LD/ED D: LD/ED E: ED/LD

  • 2022-05-29 问题

    ED WEQWERQWRQWRQWR A: 1 B: 2 C: 3 D: 4

    ED WEQWERQWRQWRQWR A: 1 B: 2 C: 3 D: 4

  • 2022-05-30 问题

    安全界限为() A: LD B: ED C: LD/ED D: LD/ED E: LD/ED

    安全界限为() A: LD B: ED C: LD/ED D: LD/ED E: LD/ED

  • 2022-05-29 问题

    半数有效量为() A: LD B: ED C: LD/ED D: LD/ED E: LD/ED

    半数有效量为() A: LD B: ED C: LD/ED D: LD/ED E: LD/ED

  • 2022-06-06 问题

    I got 1.bor(-ed, -ing) last time during the lection because the topic was totally not 2. interest(-ed, -ing) for me, it was honestly 3. tir(-ed, -ing) to be there for me.Where do you need an -ed prefix for adjectives here? A: 1,2 B: 3 C: 4 D: 1

    I got 1.bor(-ed, -ing) last time during the lection because the topic was totally not 2. interest(-ed, -ing) for me, it was honestly 3. tir(-ed, -ing) to be there for me.Where do you need an -ed prefix for adjectives here? A: 1,2 B: 3 C: 4 D: 1

  • 2022-06-06 问题

    ask(ed) A: want(ed) B: pleas(ed) C: carri(ed) D: help(ed)

    ask(ed) A: want(ed) B: pleas(ed) C: carri(ed) D: help(ed)

  • 2022-05-26 问题

    需求富有弹性表示为()。 A: Ed>0 B: Ed<0 C: Ed>1 D: Ed<1

    需求富有弹性表示为()。 A: Ed>0 B: Ed<0 C: Ed>1 D: Ed<1

  • 2022-07-28 问题

    根据病因,男性勃起功能障碍(ED)可分为: A: 心理性ED B: 器质性ED C: 境遇性ED D: 完全性ED

    根据病因,男性勃起功能障碍(ED)可分为: A: 心理性ED B: 器质性ED C: 境遇性ED D: 完全性ED

  • 1 2 3 4 5 6 7 8 9 10