皮皮学，免费搜题
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【单选题】
有关染色体畸变的描述错误的是A.
DNA断裂的结果
B.
染色体结构异常
C.
染色体数目异常
D.
光镜下可见
E.
光镜下不可见
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】We ___ eighteen lessons by the end of this term.
A.
have studied
B.
had studied
C.
will be studying
D.
will have studied
【简答题】为什么说中国的抗日战争是全民族的抗战?
【单选题】Many scientists believe sea levels ______ by more than one meter by the end of the 21st century.
A.
will be risen
B.
will have risen
C.
will have been
D.
will be rising
【单选题】Sea levels are______to rise between 7 and 23 inches by the end of 21st century.
A.
inspected
B.
suspected
C.
expected
D.
detected
【简答题】计算环比发展速度的分母是（ ）。
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