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搜题
【单选题】
常用的聚类方法有样品聚类法、系统聚类法和( )
A.
相关聚类法
B.
时序聚类法
C.
回归聚类分析
D.
平共处模糊聚类法
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举一反三
【单选题】在下列物质中,其物质的量为0.2mol的是( )
A.
8.8gCO2
B.
7.2gH2O
C.
4.8gO2
D.
49gH3PO4
【单选题】Did the woman meet the new teacher?
A.
No, she didn't.
B.
Yes, she met him three days ago.
C.
No, the new teacher has been sick for three days.
【单选题】邻面的早期龋损。可以用下列哪种方法帮助检查( )
A.
探诊
B.
牙线
C.
温度测试
D.
叩诊
E.
视诊
【单选题】邻面早期龋损可以用下列哪种方法帮助检查
A.
探查
B.
牙线
C.
温度测试
D.
叩诊
E.
视诊
【判断题】磨削加辶应用非常广泛,可以用来加工内外圆柱面,内外圆锥面、台阶、端面、平面、螺纹、轮齿、花键等,并可加工高硬度材料。
A.
正确
B.
错误
【单选题】Why won’t the man go with the woman? A. He will meet Peter. B. He is going to Scotland. C. He has to handle a car accident.
A.
B.
C.
D.
D
【单选题】a. The programme isn’t showing on Saturday. b. He’ll meet the woman on Saturday. c. The man has to help someone on Saturday. d. His cousin arrives on Saturday.
A.
a
B.
b
C.
c
D.
d
【单选题】Why can't the man meet the woman now?
A.
He has to attend a party.
B.
He has to meet a friend.
C.
He has to make a presentation.
D.
He has to finish an assignment.
【简答题】在下列物质中,物质的量为0.2mol的是( )A. 2.2g CO 2 B. 3.6g H 2 O C. 3.2g O 2 D. 49g H 2 SO 4
【单选题】邻面早期龋损可以使用下列哪种方法帮助检查( )
A.
牙线
B.
温度测试
C.
叩诊
D.
视诊
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