动词+ed可以构成什么词性 delight+ed=delighted surprise+ed=surprised
动词+ed可以构成什么词性 delight+ed=delighted surprise+ed=surprised
They seem to _____ keeping everyone else waiting. A: delight B: delight in C: delight with D: delight by
They seem to _____ keeping everyone else waiting. A: delight B: delight in C: delight with D: delight by
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)
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
He ______ in delight upon hearing the news.
He ______ in delight upon hearing the news.
He should be (delight) ____________ to hear the news.
He should be (delight) ____________ to hear the news.
The father was (delight)____to see his son.
The father was (delight)____to see his son.
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
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
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