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【多选题】
将胡萝卜韧皮部细胞培养成幼苗时,下列条件中需要的是A.
具有完整细胞核的细胞
B.
给予适宜的营养和外界条件
C.
脱离母体
D.
导入其他植物细胞的基因
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
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【单选题】听力原文：W: Doctor Thomas? This is Keith Bradley from The Daily News. I'd like to ask you some questions about the new official standard weight that you purchased. M: I'd be happy to help you. What would ...
A.
A standard unit for measuring weight.
B.
How to care for precious metals.
C.
The value of precious metals.
D.
Using the metric system.
【单选题】We were astonished to hear that their football team had won the champion.
A.
amazed
B.
amounted
C.
amused
D.
approached
【单选题】听力原文：M: Doctor Thomas? This is Keith Bradley from The Daily News. I'd like to ask you some questions about the new official standard weight that you purchased. W: I'd be happy to help you. What would ...
A.
A standard unit for measuring weight.
B.
How to care for precious metals.
C.
The value of precious metals.
D.
Using the metric system.
【简答题】72x4.6 =
【简答题】文案调查法的基本要求有哪些？
【单选题】听力原文：W: Dr. Thomas? This is Keet Bradley from the daily news. I'd like to ask you some questions about the new official standard weight that you purchased. M: I'd be happy to help you. What would you ...
A.
How to care for precious metals.
B.
A standard unit for measuring weight.
C.
The value of precious metals.
D.
Using the metric system.
【单选题】听力原文：A: 8734059. B: May I speak to Thomas Nelson? A: This is Thomas speaking. May I ask who's calling? B: This is Lee Ting, the secretary at the Dean' Office. A: Hi, Miss Lee, what's up? B: I'm callin...
A.
To invite him to attend a seminar.
B.
To inform. him about some changes in the arrangement for his seminar.
C.
To invite him to visit the lab.
D.
To inform. him that the seminar has been postponed.
【单选题】-------Obama won the election, it's amazing! -------Yes . But the result was within ______we had expected,_______brought great joy to many young people and the black .
A.
that which
B.
that that
C.
what what
D.
what which
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