皮皮学，免费搜题
登录
搜题
【单选题】
在中国,如果要布置WLAN的蜂窝式网络,IEEE802.11g 2.4GHz的频段中可布置()个不重叠的信道。
A.
3
B.
4
C.
5
D.
6
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】some of which were【L14】______.
查看完整题目与答案
【单选题】If Slovenia were a large country in world trade, then if it imposes a large set of tariffs on its imports, this must
A.
decrease the internal price of imports below the world market rate.
B.
cause retaliation on the part of its trade partners.
C.
harm Slovenia's real income.
D.
improve Slovenia's real income.
E.
improve the real income of its trade partners.
查看完整题目与答案
【单选题】If Slovenia were a large country in world trade, then if it instituted a large set of subsidies for its exports, this must
A.
have no effect on its terms of trade.
B.
harm world terms of trade.
C.
harm its terms of trade.
D.
decrease its marginal propensity to consume.
查看完整题目与答案
【单选题】If Slovenia were a large country in world trade, then if it instituted a large set of subsidies for its exports, this must ( )
A.
have no effect on its terms of trade.
B.
harm its terms of trade.
C.
harm world terms of trade.
D.
improve its terms of trade.
查看完整题目与答案
【简答题】假设同一名称的产品有不同的型号和产地，则计算每种产品平均单价的 SQL 语句是 A)SELECT 产品名称 ,AVG( 单价 ) FROM 产品 GROUP BY 单价 B)SELECT 产品名称 ,AVG( 单价 ) FROM 产品 ORDER BY 单价 C)SELECT 产品名称 ,AVG( 单价 ) FROM 产品 ORDER BY 产品名称 D)SELECT 产品名称 ,AVG( 单价 ...
查看完整题目与答案
【单选题】以下哪个不是圆柱齿轮根据齿的方向分类( )
A.
直齿
B.
斜齿
C.
人字齿
D.
蜗杆齿
查看完整题目与答案
【单选题】If Slovenia were a large country in world trade, then if it instituted a large set of subsidies for its exports, this must
A.
harm its terms of trade.
B.
have no effect on its terms of trade.
C.
improve its terms of trade.
D.
decrease its marginal propensity to consume.
E.
harm world terms of trade.
查看完整题目与答案
【单选题】假设同一名称的产品有不同的型号和产地，则计算每种产品平均单价的SQL语句是(    )。
A.
SELECT 产品名称，AVG(单价)FROM 产品 GROUP BY 单价
B.
SELECT 产品名称，AVG(单价)FROM 产品 ORDER BY 单价
C.
SELECT 产品名称，AVG(单价)FROM 产品 ORDER BY 产品名称
D.
SELECT 产品名称，AVG(单价)FROM 产品 GROUP BY 产品名称
查看完整题目与答案
【判断题】我们要时刻提高安全意识,因为日常生活中意外事件无处不在。()
A.
正确
B.
错误
查看完整题目与答案
【简答题】The water-pipes were also【L9】______;
查看完整题目与答案
相关题目：
【简答题】some of which were【L14】______.
查看完整题目与答案
【单选题】If Slovenia were a large country in world trade, then if it imposes a large set of tariffs on its imports, this must
A.
decrease the internal price of imports below the world market rate.
B.
cause retaliation on the part of its trade partners.
C.
harm Slovenia's real income.
D.
improve Slovenia's real income.
E.
improve the real income of its trade partners.
查看完整题目与答案
【单选题】If Slovenia were a large country in world trade, then if it instituted a large set of subsidies for its exports, this must
A.
have no effect on its terms of trade.
B.
harm world terms of trade.
C.
harm its terms of trade.
D.
decrease its marginal propensity to consume.
查看完整题目与答案
【单选题】If Slovenia were a large country in world trade, then if it instituted a large set of subsidies for its exports, this must ( )
A.
have no effect on its terms of trade.
B.
harm its terms of trade.
C.
harm world terms of trade.
D.
improve its terms of trade.
查看完整题目与答案
【简答题】假设同一名称的产品有不同的型号和产地，则计算每种产品平均单价的 SQL 语句是 A)SELECT 产品名称 ,AVG( 单价 ) FROM 产品 GROUP BY 单价 B)SELECT 产品名称 ,AVG( 单价 ) FROM 产品 ORDER BY 单价 C)SELECT 产品名称 ,AVG( 单价 ) FROM 产品 ORDER BY 产品名称 D)SELECT 产品名称 ,AVG( 单价 ...
查看完整题目与答案
【单选题】以下哪个不是圆柱齿轮根据齿的方向分类( )
A.
直齿
B.
斜齿
C.
人字齿
D.
蜗杆齿
查看完整题目与答案
【单选题】If Slovenia were a large country in world trade, then if it instituted a large set of subsidies for its exports, this must
A.
harm its terms of trade.
B.
have no effect on its terms of trade.
C.
improve its terms of trade.
D.
decrease its marginal propensity to consume.
E.
harm world terms of trade.
查看完整题目与答案
【单选题】假设同一名称的产品有不同的型号和产地，则计算每种产品平均单价的SQL语句是(    )。
A.
SELECT 产品名称，AVG(单价)FROM 产品 GROUP BY 单价
B.
SELECT 产品名称，AVG(单价)FROM 产品 ORDER BY 单价
C.
SELECT 产品名称，AVG(单价)FROM 产品 ORDER BY 产品名称
D.
SELECT 产品名称，AVG(单价)FROM 产品 GROUP BY 产品名称
查看完整题目与答案
【判断题】我们要时刻提高安全意识,因为日常生活中意外事件无处不在。()
A.
正确
B.
错误
查看完整题目与答案
【简答题】The water-pipes were also【L9】______;
查看完整题目与答案