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【单选题】
平时维持交感缩血管神经纤维紧张性活动的基本中枢位于。
A.
大脑
B.
延髓
C.
下丘脑
D.
中脑和脑桥
E.
脊髓中间外侧柱
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参考答案:
举一反三
【单选题】目的基因导人植物,常用的受体材料有( )。
A.
愈伤组织再生系统
B.
直接分化再生系统
C.
原生质体再生系统
D.
以上都是
【简答题】Task 7 Canada (the details) You are going to hear a talk on Canada. As you listen, complete the notes by writing No More Than Three Words. Canada is located in the northern half of the continent of 1...
【简答题】讨论逆城市化现象。
【判断题】常用的金属基体材料只有钢铁基体材料、铜及铜合金。
A.
正确
B.
错误
【简答题】Task 8 You are going to hear a talk on Canada. As you listen, complete the notes by writing No More Than Three Words. Canada is located in the northern half of the continent of 1.___________. The mos...
【简答题】完形填空。 Antarctica is the continent which is the most 1 area of land on the Earth and is mostly covered 2 ice. This is 3 of the driest and 4 in the world. But people from all over the world come to 5 th...
【单选题】Why was the year 1886 so special to Pemberton?
A.
He took to doing a job like Sherlock Holmes's.
B.
He brought a quite profitable product into being.
C.
He observed the founding ceremony of Statue of Liberty.
D.
He was awarded by Coca-Cola for his contribution.
【简答题】常用的基体材料有( )、( )、( )
【单选题】On which of the following would the author mostly agree?
A.
The future masters of the world will probably be more different from us, than we are from Neanderthals.
B.
A company that develops a new creature or a new organ has the right  to register a patent on its DNA sequences.
C.
Our late modern world has created the most unequal of all societies.
【简答题】The majority of people in this country eat too much fat and not enough fibre(纤维) and for most people a having a healthy diet is and easy to do. The move towards a healthy diet may just mean eat...
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