皮皮学，免费搜题
登录
搜题
【单选题】
通常，在Excel 2013环境中用来存储和处理工作数据的文件称为（ ）。
A.
工作簿
B.
工作表
C.
图表
D.
数据库
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
【单选题】普通机床床身的毛坯多采用( )
A.
冲压件
B.
锻件
C.
焊接件
D.
铸件
查看完整题目与答案
【单选题】Air at 1 atm and 10 °C flows across a bank of tubes 15 rows high and 5 rows deep at a velocity of 7m/s measured at a point in the flow before the air enters the tube bank. The suces of the tubes ar...
A.
36509
B.
12170
C.
18255
D.
8119
查看完整题目与答案
【单选题】普通机床床身的毛坯多采用( )
A.
冲压件
B.
焊接件
C.
铸件
D.
锻件
查看完整题目与答案
【单选题】Air at 1 atm and 10 °C flows across a bank of tubes 15 rows high and 5 rows deep at a velocity of 7m/s measured at a point in the flow before the air enters the tube bank. The suces of the tubes ar...
A.
7
B.
21
C.
10.5
D.
4.666666666666667
查看完整题目与答案
【单选题】Air at 1 atm and 10 °C flows across a bank of tubes 15 rows high and 5 rows deep at a velocity of 7m/s measured at a point in the flow before the air enters the tube bank. The suces of the tubes ar...
A.
178.7
B.
53.2
C.
87.8
D.
128.5
E.
190
查看完整题目与答案
【单选题】Air at 1 atm and 10 °C flows across a bank of tubes 15 rows high and 5 rows deep at a velocity of 7m/s measured at a point in the flow before the air enters the tube bank. The suces of the tubes ar...
A.
2.51
B.
0.0251
C.
2.59
D.
0.0259
E.
0.0255
F.
0.0293
查看完整题目与答案
【单选题】某单动往复栗 泵么活塞 直径为 4cm , 往复次数 为60次/min,冲程为1 5 cm , 该往复泵的理论流量为 ( ) L/min。
A.
11.3
B.
22.6
C.
678.2
D.
5.7
查看完整题目与答案
【单选题】Air at 1 atm and 10 °C flows across a bank of tubes 15 rows high and 5 rows deep at a velocity of 7m/s measured at a point in the flow before the air enters the tube bank. The suces of the tubes ar...
A.
0.7
B.
0.928
C.
0.978
D.
0.994
查看完整题目与答案
【单选题】光阑和目镜 用显微镜观察细胞时,应选择下列哪种目镜和物镜的组合在视野内所看到的细胞数目最多( )
A.
目镜 10 ×，物镜 4 ×
B.
目镜 10 ×，物镜 10 ×
C.
目镜 10 ×，物镜 20 ×
D.
目镜 10 ×，物镜 40 ×
E.
目镜 15 ×，物镜 40 ×
查看完整题目与答案
【单选题】Air at 1 atm and 10 °C flows across a bank of tubes 15 rows high and 5 rows deep at a velocity of 7m/s measured at a point in the flow before the air enters the tube bank. The suces of the tubes ar...
A.
190
B.
53.4
C.
88.1
D.
129
E.
179.4
查看完整题目与答案
相关题目：
【单选题】普通机床床身的毛坯多采用( )
A.
冲压件
B.
锻件
C.
焊接件
D.
铸件
查看完整题目与答案
【单选题】Air at 1 atm and 10 °C flows across a bank of tubes 15 rows high and 5 rows deep at a velocity of 7m/s measured at a point in the flow before the air enters the tube bank. The suces of the tubes ar...
A.
36509
B.
12170
C.
18255
D.
8119
查看完整题目与答案
【单选题】普通机床床身的毛坯多采用( )
A.
冲压件
B.
焊接件
C.
铸件
D.
锻件
查看完整题目与答案
【单选题】Air at 1 atm and 10 °C flows across a bank of tubes 15 rows high and 5 rows deep at a velocity of 7m/s measured at a point in the flow before the air enters the tube bank. The suces of the tubes ar...
A.
7
B.
21
C.
10.5
D.
4.666666666666667
查看完整题目与答案
【单选题】Air at 1 atm and 10 °C flows across a bank of tubes 15 rows high and 5 rows deep at a velocity of 7m/s measured at a point in the flow before the air enters the tube bank. The suces of the tubes ar...
A.
178.7
B.
53.2
C.
87.8
D.
128.5
E.
190
查看完整题目与答案
【单选题】Air at 1 atm and 10 °C flows across a bank of tubes 15 rows high and 5 rows deep at a velocity of 7m/s measured at a point in the flow before the air enters the tube bank. The suces of the tubes ar...
A.
2.51
B.
0.0251
C.
2.59
D.
0.0259
E.
0.0255
F.
0.0293
查看完整题目与答案
【单选题】某单动往复栗 泵么活塞 直径为 4cm , 往复次数 为60次/min,冲程为1 5 cm , 该往复泵的理论流量为 ( ) L/min。
A.
11.3
B.
22.6
C.
678.2
D.
5.7
查看完整题目与答案
【单选题】Air at 1 atm and 10 °C flows across a bank of tubes 15 rows high and 5 rows deep at a velocity of 7m/s measured at a point in the flow before the air enters the tube bank. The suces of the tubes ar...
A.
0.7
B.
0.928
C.
0.978
D.
0.994
查看完整题目与答案
【单选题】光阑和目镜 用显微镜观察细胞时,应选择下列哪种目镜和物镜的组合在视野内所看到的细胞数目最多( )
A.
目镜 10 ×，物镜 4 ×
B.
目镜 10 ×，物镜 10 ×
C.
目镜 10 ×，物镜 20 ×
D.
目镜 10 ×，物镜 40 ×
E.
目镜 15 ×，物镜 40 ×
查看完整题目与答案
【单选题】Air at 1 atm and 10 °C flows across a bank of tubes 15 rows high and 5 rows deep at a velocity of 7m/s measured at a point in the flow before the air enters the tube bank. The suces of the tubes ar...
A.
190
B.
53.4
C.
88.1
D.
129
E.
179.4
查看完整题目与答案