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【单选题】
时间阈值是指能引起组织兴奋的（）作用时间。A.
最长
B.
最短
C.
延迟
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反馈参考答案：
举一反三
【单选题】When I was in high school, I had almost no individual identity left. I was a Hillcrest Husky and all other high schools were enemies. I was a wrestler and all the other sports were wimps. I was on the...
A.
rivalry
B.
prejudice
C.
conflicts
D.
all of the above
【单选题】螺旋箍筋柱核心截面的直径dcor 是 ( )。
A.
按螺旋箍筋或焊接环形箍筋内表面确定；
B.
按螺旋箍筋或焊接环形箍筋外表面确定
C.
按螺旋箍筋或焊接环形箍筋直径的中心表面确定；
D.
按纵向受力钢筋的中心表面确定。
【单选题】Shooting ____ movie at high school is ____ experience that I will never forget as long as I live. [ ]
A.
the; a
B.
a; /
C.
/; an
D.
a; an
【单选题】I ______ in No.46 Junior High School for four years. Now I have been a student of Tieren Senior High School for three months.
A.
have studied
B.
had studied
C.
was studying
D.
studied
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