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【多选题】
用红外光谱法鉴别盐酸普鲁卡因，下列吸收峰的归属是1、3315cm-1,3200cm-12、1692cm-l3、1604cm-1,1520cm-1
A.
氨基N-H
B.
苯环C-C
C.
O-H
D.
酯基C=O
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参考答案：
举一反三
【单选题】裸子植物的胚乳是由( )发育而来。
A.
受精卵
B.
受精极核
C.
雌配子体
D.
珠心
查看完整题目与答案
【单选题】A few of the local residents ______ uncertain about the multinational company's plans to build a chemical factory in Lownes.
A.
is
B.
are
C.
be
D.
being
查看完整题目与答案
【单选题】The company plans to_______and reorganize many of its stores to eliminate overlap in jobs and office functions.
A.
closely
B.
close
C.
closed
D.
be closed
查看完整题目与答案
【多选题】When you write about your company’s plans for future growth and development, you should ( ).
A.
include the company’s business model and outlook
B.
write about how the company plans to expand its goods and services offered
C.
show how the company plans to increase the number of company store locations
D.
avoid using business jargons
查看完整题目与答案
【单选题】()you prepare cross training plans, you need to consider both the company benefits and the employee benefits.
A.
Although
B.
Even if
C.
As
查看完整题目与答案
【简答题】如图为克隆羊“多莉”的培养过程示意图，请回答： （1）“多莉”不是由受精卵发育来的，她的身世与三只母羊有关．组成“多莉”的细胞核来自______羊的乳腺细胞，将该核注入______羊的去核卵细胞中，组成融合细胞，融合细胞分裂形成小小的胚胎后，再将这个胚胎移入______羊子宫内继续发育，一段时间后，小羊“多莉”出生． （2）“多莉”是母羊出生的，但它的长相却和______羊最为相似．由此可知，...
查看完整题目与答案
【简答题】二、填空 1种子是由胚珠发育而成,胚囊中的受精卵发育成( ),受精极核发育成( ),珠被发育成( )。 2植物种子是由( )、( )和( )三部分构成,但有些种子却只有( )和( )两部分,前者称( )种 子、后者称( )种子. 3种子的胚由( )、( )、( )和( )组成。 4种子的胚乳或子叶中贮藏有大量的营养物质,主要是( )、( )和( ),它...
查看完整题目与答案
【单选题】Nowthe company plans to() (下放) parts of its responsibilities to branch offices.
A.
revolve
B.
devolve
C.
evolve
D.
involve
查看完整题目与答案
【单选题】把碘液滴在玉米种子的切面上，玉米种子的胚乳部分被染成蓝色，未被染成蓝色的部分是由哪部分发育而来的
A.
受精卵
B.
胚珠
C.
子房壁
D.
受精极核
查看完整题目与答案
【单选题】Hal explains that the company plans to ______.
A.
merge with another company
B.
move to new offices in the USA
C.
move into new industry sectors
查看完整题目与答案
相关题目：
【单选题】裸子植物的胚乳是由( )发育而来。
A.
受精卵
B.
受精极核
C.
雌配子体
D.
珠心
查看完整题目与答案
【单选题】A few of the local residents ______ uncertain about the multinational company's plans to build a chemical factory in Lownes.
A.
is
B.
are
C.
be
D.
being
查看完整题目与答案
【单选题】The company plans to_______and reorganize many of its stores to eliminate overlap in jobs and office functions.
A.
closely
B.
close
C.
closed
D.
be closed
查看完整题目与答案
【多选题】When you write about your company’s plans for future growth and development, you should ( ).
A.
include the company’s business model and outlook
B.
write about how the company plans to expand its goods and services offered
C.
show how the company plans to increase the number of company store locations
D.
avoid using business jargons
查看完整题目与答案
【单选题】()you prepare cross training plans, you need to consider both the company benefits and the employee benefits.
A.
Although
B.
Even if
C.
As
查看完整题目与答案
【简答题】如图为克隆羊“多莉”的培养过程示意图，请回答： （1）“多莉”不是由受精卵发育来的，她的身世与三只母羊有关．组成“多莉”的细胞核来自______羊的乳腺细胞，将该核注入______羊的去核卵细胞中，组成融合细胞，融合细胞分裂形成小小的胚胎后，再将这个胚胎移入______羊子宫内继续发育，一段时间后，小羊“多莉”出生． （2）“多莉”是母羊出生的，但它的长相却和______羊最为相似．由此可知，...
查看完整题目与答案
【简答题】二、填空 1种子是由胚珠发育而成,胚囊中的受精卵发育成( ),受精极核发育成( ),珠被发育成( )。 2植物种子是由( )、( )和( )三部分构成,但有些种子却只有( )和( )两部分,前者称( )种 子、后者称( )种子. 3种子的胚由( )、( )、( )和( )组成。 4种子的胚乳或子叶中贮藏有大量的营养物质,主要是( )、( )和( ),它...
查看完整题目与答案
【单选题】Nowthe company plans to() (下放) parts of its responsibilities to branch offices.
A.
revolve
B.
devolve
C.
evolve
D.
involve
查看完整题目与答案
【单选题】把碘液滴在玉米种子的切面上，玉米种子的胚乳部分被染成蓝色，未被染成蓝色的部分是由哪部分发育而来的
A.
受精卵
B.
胚珠
C.
子房壁
D.
受精极核
查看完整题目与答案
【单选题】Hal explains that the company plans to ______.
A.
merge with another company
B.
move to new offices in the USA
C.
move into new industry sectors
查看完整题目与答案
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