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【单选题】
IP 地址为 140.111.0.0 的 B 类网络,若要切割为 9 个子网,子网掩码应设为 ()A.
255.0.0.0
B.
255.255.0.0
C.
255.255.128.0
D.
255.255.240.0
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举一反三
【简答题】组合体零件图上的尺寸应标注 、 和 三大尺寸。
【单选题】Please indicate the main function of the word that is in boldface in the following passage. More than one letter might be acceptable, but y ou must choose only one option as the best. From an advertis...
A.
P = a premise marker
B.
C = a conclusion marker
C.
A = an assuring term
D.
G = a guarding term
E.
D = a discounting term
F.
E+ = a positive evaluative term
G.
E- = a negative evaluative term
【简答题】软币是指在外汇市场上汇率呈____的货币。
【简答题】Choose an acceptable verb form from the two given in brackets according to the standard of formal writing. 1.( ) 2.( ) 3.( ) 4.( ) 5.( ) 6.( ) 7.( ) 8.( ) 9.( ) 10.( ) 11.( ) 12.( ) 13.( ) 14.( ) 15.(...
【单选题】Choose an acceptable verb form from the two given in brackets according to the standard of formal writing : Pancakes and syrup (is, are) a tasty breakfast.
A.
is
B.
are
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