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【判断题】
函数 在 条件 下的最小值A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】What is suggested about the training schedule in the first e-mail?
A.
It was created by the Skyview Hotel
B.
It is still being developed.
C.
It has been sent to attendees.
D.
It is similar to last year's training schedule.
【单选题】按照 Charagaff 法则,关于 DNA 碱基的组成的下列叙述,正确的是()
A.
A+T=G+C
B.
A 与 C 的含量相等
C.
不同生物来源的 DNA 碱基组成不同
D.
生物体 DNA 的碱基组成随着年龄的变化而变化
E.
同一生物体,不同组织的 DNA 碱基的组成不同
【单选题】It is the first time that a developing country _______ the Expo, described as the Olympic Games of economy, science and technology．
A.
is hosting
B.
has hosted
C.
hosts
D.
will host
【单选题】Which of the following is the first step in the marketing research process?
A.
developing a marketing information system
B.
defining the problem and objectives of the study
C.
developing the research plan
D.
implementing the research plan
E.
interpreting and reporting the findings
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