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【单选题】
当单片机应用系统需要扩展外部存储器或其他接口芯片时,___高8位地址总线使用。A.
P0
B.
P1
C.
P2
D.
P0和P2
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Specific tariffs are
A.
import taxes stated in specific legal statutes.
B.
import taxes calculated as a fixed charge for each unit of imported goods.
C.
import taxes calculated as a fraction of the value of the imported goods.
D.
the same as import quotas.
E.
import taxes calculated based solely on the origin country.
【单选题】Specific tariffs are:
A.
levied as a proportion of the value of the imported good.
B.
government payment to domestic producers.
C.
in the form of manufacturing or production requirements of goods.
D.
levied as a fixed charge for each unit of a good imported.
【简答题】用甲醛法测得某铵盐中氮的质量分数为(%)5.15 , 5.32 , 5.22 , 5.25。其平均值( )为____ ;标准差(s)为____ ;其平均值的标准差( )为____; 含氮量在置信度95%时的置信区间是____。 (t 0.05,3 =3.18)
【单选题】Specific tariffs are collected as
A.
fixed amounts of money per unit traded.
B.
a percentage of the price of the product.
C.
a percentage of the quantity of imports.
D.
All of the above.
【单选题】Specific tariffs are
A.
import taxes stated in specific legal statutes.
B.
import taxes calculated as a fixed charge for each unit of imported goods.
C.
import taxes calculated as a fraction of the value of the imported goods.
D.
the same as import quotas.
E.
None of the above
【单选题】Specific tariffs are
A.
Levied as a proportion of the value of the imported good
B.
Levied as a fixed charge for each unit of a good imported
C.
In the form of manufacturing or production requirements of goods.
D.
Government payment to domestic producers
【单选题】Specific tariffs are
A.
import taxes stated in specific legal statutes.
B.
import taxes calculated as a fixed charge for each unit of imported goods.
C.
import taxes calculated as a fraction of the value of the imported goods.
D.
the same as import quotas.
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