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【多选题】
消除光谱干扰的方法是A.
使用氘灯背景校正
B.
使用合适的燃气与助燃气
C.
减小狭缝、用高纯度的单元素灯
D.
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反馈参考答案：
举一反三
【单选题】Long Conversation 1 Questions 10 is based on the conversation you have just heard.
A.
To learn how to prevent a bone disease.
B.
To understand differences between bone tissue and other tissue.
C.
To find out how specialized bone cells have evolved.
D.
To create artificial bone tissue.
【单选题】Questions 12 to 15 are based on the conversation you have just heard .
A.
Lower the tax for companies that employ young people.
B.
Maintain sustainable economic development.
C.
Promote programs that encourage training.
D.
Create more jobs.
【单选题】Questions 1 and 2 are based on the news report you have just heard.
A.
Many countries have not taken measures to create enough jobs.
B.
Few countries know how to address the current economic crisis.
C.
Few countries have realized the seriousness of the current crisis.
D.
Many countries need support to improve their people’s livelihood.
【简答题】饲料的概念、营养物质的概念。 动植物体的组成不同之处有哪些?
【单选题】Questions 8 to 11 are based on the conversation you have just heard.
A.
They can develop into human organ.
B.
They are able to cure cancer.
C.
They help to recreate stem cells.
D.
They are able to create new DN
【单选题】S: And , consider changing disciplines. Yeah, to the humanities--perhaps history. One of the advantages of teaching history is that you don't have to create things. You know, you just have to remember...
A.
if I might make a suggestion
B.
if I may suggest
【简答题】谈谈你是如何读新闻的,存在什么问题或缺点。
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