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【单选题】
胰岛素增敏剂为()
A.
格列喹酮(磺脲类)
B.
格列苯脲(磺脲类)
C.
罗格列酮 (噻唑烷二酮类)
D.
糖(α-葡萄糖苷酶抑制剂)
E.
瑞格列奈(格列奈类)
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【简答题】习题6.5 求下列函数的极值: (1)
【单选题】The air in big cities _____very dirty by factories.
A.
are often made
B.
is often made
C.
have often made
D.
has often made
【单选题】Do you know the student____________?
A.
whom I often talk
B.
with who I often talk
C.
I often talk with
D.
that I often talk
【单选题】Turn on the television or open a magazine and you ________ advertisements showing happy families. A. will often see B. often see C. are often seeing D. have often seen
A.
will often see
B.
often see
C.
are often seeing
D.
have often seen
【简答题】4函数的极值与最值练习题.docx
【单选题】2判断函数 是否有极值,极值点和极值
A.
B.
有,极值点为 ,极大值
C.
有,极值点为 ,极小值
D.
有,极值点为 ,极大值
【判断题】.PLD作为一种通用型可编程逻辑器件,而它的逻辑功能又是由用户通过对器件编程来自行设定的。
A.
正确
B.
错误
【判断题】可编程逻辑器件的逻辑功能是用户通过对器件编程进行设定的。
A.
正确
B.
错误
【判断题】在汉字产生之前,人们为了帮助记忆、交流思想、传递信息,采用的最原始的记录方法是图画记事。
A.
正确
B.
错误
【简答题】函数曲线 在定义域内(    ). (A)有极值有拐点    (B)有极值无拐点 (C)无极值有拐点    (D)无极值无拐点
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