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【简答题】
试述下列烯类高聚物的构型特点及其名称。式中d表示结构是d构型，l则表示是l构型。(1)—d—d—d—d—d—d—d—；(2)—l—l—l—l—l—l—l—；(3)—d—l—d—l—d—l—d—l—；(4)—d—d—l—d—l—l—l—。
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举一反三
【单选题】Haley cited the examples of Joe Delaney and Harry Belafbnte to show that ____.
A.
some people never succeed despite their hard work
B.
people who have dreams have to suffer
C.
people have to make sacrifices to live creatively
D.
successful artists always have dreams
【单选题】Haley cited the examples of Joe Delaney and Harry Belafonte to show that
A.
some people never succeed despite their hard work
B.
people have to make sacrifices to live creatively
C.
people who have dreams have to suffer
D.
successful artists always have dreams
【单选题】Haley cited the examples of Joe Delaney and Harry belafonte to show that _______.
A.
some people never succeed despite their hard work
B.
people who have dreams have to suffer
C.
fpeople have to make sacrifices to live creatively
D.
successful artists always have dreams
【简答题】根据图片写单词。 1. m________________ 2. t________________ 3. p________________ 4. w________________
【单选题】Haley cited the examples of oe Delaney and Harry Belafonte to show that ________
A.
some people never succeed despite their hard work
B.
people who have dreams have to suffer
C.
people have to make sacrafices to live creatively
D.
successful artists always have dreams
【判断题】P87. 1. T or F. 1. We may get on well with many people, but we make friends
with only a few of them.
A.
正确
B.
错误
【简答题】字母排队组单词。 1. l, g, h, t, i ________________ 2. w, o, w, n, d, i ________________ 3. b, a, r, d, o ________________ 4. p, c, t, r, u, e, i ________________
【简答题】给字母排队组单词。 1. g, o, a __________________ 2. w, s, e, i __________________ 3. s, r, a, t __________________ 4. i, n, w, r, t, e __________________ 5. y, b, a, b __________________
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