3、已知命题使;命题,都有。则( )
A、命题“”是真命题 B、命题“”是假命题
C、命题“”是假命题 D、命题“”是假命题
2、已知集合,则( )
A、 B、 C、 D、
1、已知集合,集合,则集合有几个元素( )
A、3 B、6 C、7 D、8
25.The thief broke in,trying to open the safe but .
A.in vain B.in no way C.on no condition D.on purpose
答案 A
24.This study shows that languages may differ,the order in which young kids learn the parts of speech appears to be the same across different languages.
A.since B.so C.while D.but
答案 C
23.Having lived in the town for quite a few years,Mr. Johnson no longer felt among the
local people.
A.out of order B.out of place C.out of control D.out of the question
答案 B
22.Dress warmly, you’ll catch a cold.
A.on the contrary B.or rather C.or else D.in no way
答案 C
21.There is such a problem we all should .
A.as;pay attention to it B.that;attract our attention
C.as;pay attention to D.that;attract our attention to it
答案 C
20.-Susan’s head ached staring at the screen for over ten hours.
-Over ten hours!That’s really what I can imagine!
A.of;above B.in;over C.through;among D.from;beyond
答案 D
19.You can’t attend the party tonight because it is stormy. ,you still haven’t got over your high fever.
A.Therefore B.However C.Moreover D.Thus
答案 C
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