皮皮学，免费搜题
登录
搜题
【单选题】
如果圆 x 2 + y 2 + Dx + Ey + F = 0( D 2 + E 2 - 4 F >0) 关于直线 y = x 对称,则有 ( )
A.
D ＋ E ＝ 0
B.
D ＝ E
C.
D ＝ F
D.
E ＝ F
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】The export policy in this passage means ______.
A.
to send prisoners to other counties
B.
to send prisoners to other countries
C.
to send prisoners to other islands
D.
to send prisoners to other states
查看完整题目与答案
【单选题】中国传统商品倍按五倍子主要形态分为哪三类?( )
A.
角倍、肚倍、倍花
B.
角倍、蛋铁倍、倍花
C.
倍蛋、蛋肚倍、红倍花
D.
倍蛋、蛋肚倍、倍花
查看完整题目与答案
【单选题】If an export trade has the export cost for foreign exchange of 5 while the exchange rate is 6.35 at that time, it means the transaction ( ).
A.
suffers a loss
B.
earns a profit
C.
is on break-even point
D.
none of the above
查看完整题目与答案
【单选题】Moving into the export market means that
A.
sales will grow.
B.
things will get busier.
C.
there will be fewer business trips.
查看完整题目与答案
【单选题】Indirect export means
A.
Exporters use an intermediary
B.
Importers use an intermediary
C.
Investers use an intermediary
D.
Customers use an intermediary
查看完整题目与答案
【单选题】The term “ ( ) ” means the activities of determining the commodity codes of import and export goods , on the basis of the Customs Import and Export Tariff of the People's Republic of China .
A.
commod e classification
B.
commodity classification
C.
commodity classif y
D.
commodi ous classification
查看完整题目与答案
【单选题】According to INCOTERMS 2000，( )means that the sellers deliVers the goods，cleared for export,the carrier nominated by the buyer at the named place．
A.
FCA
B.
FOB
C.
CFR
D.
CPT
查看完整题目与答案
【判断题】If the import higher than export, it means the local currency depreciation in the short term.
A.
正确
B.
错误
查看完整题目与答案
【简答题】煤的元素分析是指煤中____五个项目煤质分析的总称。
查看完整题目与答案
【多选题】What the the types of C2C export?
A.
Etsy
B.
eBay
C.
Craigslist
D.
Amazon
查看完整题目与答案
相关题目：
【单选题】The export policy in this passage means ______.
A.
to send prisoners to other counties
B.
to send prisoners to other countries
C.
to send prisoners to other islands
D.
to send prisoners to other states
查看完整题目与答案
【单选题】中国传统商品倍按五倍子主要形态分为哪三类?( )
A.
角倍、肚倍、倍花
B.
角倍、蛋铁倍、倍花
C.
倍蛋、蛋肚倍、红倍花
D.
倍蛋、蛋肚倍、倍花
查看完整题目与答案
【单选题】If an export trade has the export cost for foreign exchange of 5 while the exchange rate is 6.35 at that time, it means the transaction ( ).
A.
suffers a loss
B.
earns a profit
C.
is on break-even point
D.
none of the above
查看完整题目与答案
【单选题】Moving into the export market means that
A.
sales will grow.
B.
things will get busier.
C.
there will be fewer business trips.
查看完整题目与答案
【单选题】Indirect export means
A.
Exporters use an intermediary
B.
Importers use an intermediary
C.
Investers use an intermediary
D.
Customers use an intermediary
查看完整题目与答案
【单选题】The term “ ( ) ” means the activities of determining the commodity codes of import and export goods , on the basis of the Customs Import and Export Tariff of the People's Republic of China .
A.
commod e classification
B.
commodity classification
C.
commodity classif y
D.
commodi ous classification
查看完整题目与答案
【单选题】According to INCOTERMS 2000，( )means that the sellers deliVers the goods，cleared for export,the carrier nominated by the buyer at the named place．
A.
FCA
B.
FOB
C.
CFR
D.
CPT
查看完整题目与答案
【判断题】If the import higher than export, it means the local currency depreciation in the short term.
A.
正确
B.
错误
查看完整题目与答案
【简答题】煤的元素分析是指煤中____五个项目煤质分析的总称。
查看完整题目与答案
【多选题】What the the types of C2C export?
A.
Etsy
B.
eBay
C.
Craigslist
D.
Amazon
查看完整题目与答案