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【单选题】
交换机是一种___________设备.A.
存储
B.
信息广播
C.
存储转发
D.
数据转换
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【多选题】What bills are invalid？以下那些票据是有效的？（）
A.
Pay to M Co. or order the sum of one thousand US dollars.”
B.
Pay to M Co. providing the goods they supply are complied with contract the sum of one thousand US dollars.”
C.
“Pay to M Co. out of the proceeds in our No. 1 account the sum of one thousand US dollars.”
D.
“Pay to M Co or order the sum of one thousand US dollars and charge/debit same to applicant’s account maintained with you.”
E.
“Pay to the order of ABC Co. the sum of one thousand US dollars plus interest
【简答题】硅管正偏导通时,其管压降约为( )
【单选题】下述四张汇票的支付命令中,能使汇票成立的是:( )。
A.
Pay to ABC Co. Providing the goods they supply are complied with contract the sum of ten thousand US dollars
B.
Pay to ABC Co. out of the proceeds in our No. 1 account the sum of one thousand US dollars
C.
Pay to ABC Bank or order the sum of ten thousand US dollars and debit same to applicants account maintained with you
D.
“Pay to the order of ABC Co. the sum of one thousand US dollars by installments.”
【单选题】下列关于动物体细胞核移植技术和克隆动物的叙述,正确的是( ) A .目前科学家可以用类似植物组织培养的方法获得完整的动物个体 B .动物体细胞核移植技术可有选择地繁殖某一性别的家畜 C .用于核移植的供体细胞一般都选用传代50代以内的细胞 D .用体细胞核移植方法生产的克隆动物是对体细胞供体动物进行100%的复制
A.
1
B.
2
C.
3
D.
4
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