【单选题】
_____is announced in the papers, our country has launched a large scale movement against smuggling and fraudulent activities in foreign currency exchange deals.
①
What
②
As
③
Which
④
That
【单选题】
His decision was ____, since he could not see the action
from where he was standing.
①
arbitrary
②
ordinary
③
casual
④
accurate
【单选题】
It seemed a long time since we last met. Identify the mistake in the sentence.
①
It
②
seemed
③
a
④
met
【判断题】
Formal English is much more difficult to attain since it is subject to more restraints and requirements.
①
正确
②
错误
【单选题】
文法G【S】=（{b}，{S，B}，S，{S→b│bB，B→bS}），该文法所描述的语言____。
①
L(G[S])={b2i+1│i≥0}
②
L(G[S])={b2i+1│i≥1}
③
L(G[S])={bi│i≥0}
④
L(G[S])={b2i│i≥0}
【单选题】
Mr. Brown had hardly said a word since supper,___ had his wife.
①
either
②
or
③
nor
④
so
【单选题】
Mr. Brown had hardly said a word since supper,___ had his wife.
①
either
②
or
③
nor
④
So