皮皮学，免费搜题
登录
搜题
【单选题】
使用氢火焰离子化检测器时,最适宜的载气是:A.
H 2
B.
He
C.
N 2
D.
Ar
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】(1) Francis Watson was far from being ____(mere) a furniture expert.
【单选题】James Watson, who later headed the Human Genome Project, along with Englishman Francis Crick discovered the double helix in 1953, the basic structure of DNA, when the two were young scientists.
A.
James Watson, who later headed the Human Genome Project, along with Englishman Francis Crick discovered the double helix in 1953, the basic structure of DNA, when the two were young scientists.
B.
The double helix, the basic structure of DNA, was discovered in 1953 by two young scientists, the Englishman Francis Crick and James Watson, who later headed the Human Genome Project.
C.
The basic structure of DNA, the double helix, was discovered in 1953 by the Englishman Francis Crick and James Watson, later head of the Human Genome Project, two young scientists.
D.
The Englishman Francis Crick and James Watson, later heading the Human Genome Project, were the young scientists who discovered the basic structure of DNA in 1953, which was the double helix.
E.
The basic structure of DNA, the double helix, was discovered by James Watson, later head of the Human Genome Project, along with another of two young scientists, the Englishman Francis Crick, in 1953.
【单选题】The first technological revolution in modern biology started when James Watson and Francis Crick described the structure of DNA half a century ago. That established the fields of molecular and cell bi...
A.
The molecular and cell structure are found during the first revolution.
B.
Scientists sequenced the human genome half a century ago.
C.
Scientists have completely understood the mystery of DNA
D.
The origins of some diseases have been found in the second revolution.
【简答题】案例一：小李是某寿险公司一名保险代理人，在向客户介绍某保险产品时，没有认真向客户解释和说明全部保险条款的内容，而且因一时疏忽，还错误解释了某项条款，虽然客户在签订保险合同时并未对此提出异议，但小李经过几番考虑，还是决定将工作中的失误告诉客户并重新解释了条款。小李的做法赢得了客户的信任，该客户将此事告诉了他的多位朋友，也将他们介绍成了小李的客户。 案例二：小罗是一家保险公司的核保人员，他的朋友小蒙身...
【简答题】计算机的发展阶段经历了 ( ) 、 ( ) ( ) 、 ( )四个阶段。
相关题目：