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【多选题】
下列属于世界电信服务贸易发展趋势的是( )。A.
新型电信服务持续出现
B.
产品贸易种类不断增多
C.
贸易竞争格局变动加剧
D.
数字产品市场规模不断扩张
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皮皮学刷刷变学霸
举一反三
【单选题】Students shouldn't be given so difficult a problem _____ they can not work out. [ ]
A.
that
B.
which
C.
while
D.
as
【单选题】They are restless / motionless , waiting for the performance to start.
A.
restless
B.
motionless
【单选题】Its an_____difficult problem, which even many professionals cannot work out.
A.
exceedingly
B.
excessively
C.
exclusively
D.
extensively
【单选题】Which of the following statements is true?
A.
The boy prefers to go out and, work.
B.
The boy has neither much interest in school nor in work.
C.
The boy is discouraged because he didn't pass the exam.
【简答题】This diagram has been drawn in keeping with a certain logic. Can you work out which number should replace the question mark?
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