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【单选题】
以下有关命题的说法正确的是（ ）A.
命题“若 则 或 ”的逆否命题为“若 或 ，则 ”
B.
若 为假命题，则 均为假命题
C.
“ ”是“方程 表示双曲线的充分不必要条件”
D.
对于命题
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举一反三
【单选题】Taylor Swift is quite popular ________ the public. She’s made a remarkable achievement for a girl of her age.
A.
to
B.
in
C.
with
D.
for
【单选题】Teachers all consider her as a ( ) girl for her special skills.
A.
especial
B.
unusual
C.
usual
D.
important
【单选题】As a sensitive girl, a simple scolding can be a experience for her.
A.
grievous
B.
sensible
C.
hysterical
D.
gracious
【简答题】系指多种毒物联合作用的毒性大大超过各个毒物毒性的总和,又叫增毒作用,如一氧化碳可增强硫化氢的毒性。
【单选题】下面关于同源染色体概念的叙述中，不正确的是
A.
一条来自父方，一条来自母方的两条染色体
B.
在减数分裂过程中能联会的两条染色体
C.
形状和大小一般都相同的两条染色体
D.
一条染色体经复制而形成的两条染色体
【单选题】If a young man proposed to a girl, the girl would ask her father for permission.
A.
Right
B.
Wrong
C.
Not mentioned
【简答题】完形填空。 One girl left her home after a quarrel (争吵) with her mother. She walked for a long time. Then she saw a noodle shop. She was 1 , but she didn't have any money with her. The shop owner was 2 old ...
【单选题】下面关于同源染色体概念的叙述中,不正确的是
A.
形状和大小一般都相同的两条染色体
B.
一条来自父方、一条来自母方的两条染色体
C.
在减数分裂过程中能联会的两条染色体
D.
一条染色体经复制而形成的两条染色体
【简答题】听材料，回答1-2题。 1. What is the girl going to Shanghai for? A. For her holiday. B. For her business. C. For a test. 2. How soon will the girl come back? A. In a month. B. In two weeks. C. In a week.
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