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【单选题】
国家标准的代号为( )。A.
(A)JB;
B.
(B)QB;
C.
(C)TB;
D.
(D) GB
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举一反三
【单选题】－How was your final exam, Tom? －I’m sorry, dad. I failed and only then the importance of studies.
A.
I realized
B.
I had realized
C.
had I realized
D.
did I realize
【单选题】—Did you have a talk with Tom? —No.I was trying to _________ a chance to do so,but I failed.
A.
seize
B.
grasp
C.
form
D.
catch
【简答题】C语言中的基本数据类型有( )、( )和( )。
【单选题】下列不属于染色体变异的是（）
A.
由于第5号染色体短臂缺失引起的猫叫综合症
B.
由于多一条第21号染色体而引起的先天性愚型
C.
由于同源染色体之间交换了对应部分而引起的变异
D.
由普通小麦和黑麦培育形成八倍体小黑麦
【单选题】— The English exam is not difficult, is it? — _____. Even Tom _____ to the top students failed in it. [ ]
A.
Yes; beloned
B.
not ; beloned
C.
Yes; belonging
D.
no; beloning
【简答题】Why does the actor hope that the audience won’t be scared?
【单选题】---Tom is such a stupid student that he had failed in every exam. ---Sorry, I won’t agree. He is ________ than stupid.
A.
lazier
B.
no lazier
C.
more lazy
D.
lazier rather
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