【单选题】It can be inferred from the passage that we could have learned much more about our past than we do now if our ancestors had ______.
A.
kept a written record of every past event
B.
not burnt their written records in wars
C.
told exact stories of the most important happenings
D.
made more songs and dances
【多选题】国际经济协调按协调对象分类,可分为______。
【多选题】“大国工匠”们都成为他们所在企业的重要骨干,为企业的发展做出了重要贡献,这说明
【单选题】在国际国际贸易协调中主要是对()。
A.
关税和非关税贸易政策以及调整国际贸易关系的协调
【单选题】以下关于非服务攻击行为特征的描述中,错误的是()。
A.
对无线传感器网络节点之间的无线通信进行干扰,造成通信中断
B.
攻击EPC中的域名服务(DNS)体系或服务,使RFID系统瘫痪
D.
攻击路由器、交换机或移动通信基站、AP接入点或无线路由器,导致网络瘫疾
【判断题】1994年1月1日,世界贸易组织正式成立,标志着国际贸易协调进入了一个新阶段。
【单选题】Which can NOT be learned from Channel 3 on April 25th, 2009?
D.
Miao People's language
【单选题】It can be learned from Paragraph Five that______.
A.
8-hour subjects fared the best among three groups
B.
the 6-hour subjects began to decline in the middle of the study
C.
half of the 6-hour subjects fell asleep at the computer
D.
4-hour subjects were more impaired than 6-hour subjects