【单选题】【消耗次数：1】
Tom has been a vegetarian ____ principle for years.
①
in
②
on
③
for
④
by
参考答案：
复制
纠错
相关题目
【单选题】
he park has been built and it will be open _____ three years
①
A. in
②
B.for
③
C.on
④
D.after
【单选题】
The professor has been [填空]at the university for over thirty years.
①
teach
②
taught
③
teaching
④
will teach
【单选题】
Lucy has been a student there for nearly one and [填空] half years．
①
a
②
an
③
the
④
/
【单选题】
This technology has been ?around for a long time, but not until recent years _______ it in marketing.
①
businesses employed
②
did businesses employ
③
businesses had employed?
④
had businesses employed
【单选题】
38. In recent years much more emphasis has been put______ developing the students productive skills.
①
onto
②
in
③
over
④
on
【单选题】
Our factory has ____ for years.
①
many fire equipments
②
much equipment of fire
③
many equipments of fire
④
much fire equipment
随机题目
【单选题】
面向用户提供大数据一站式部署方案，包括数据中心和服务器等硬件、数据分析应用软件及技术运维支持等多方面内容的大数据商业模式是
①
大数据解决方案模式
②
大数据信息分类模式
③
大数据处理服务模式
④
大数据资源提供模式
【单选题】
是把互联网的创新成果与经济社会各个领域深度融合，推进技术进步、效率提升和组织变革，提升实体经济创新力和生产力，形成更广泛的、以互联网为基础设施和创新要素的经济社会发展形态
①
云计算
②
大数据
③
“互联网”+
④
物联网