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【單選題】
已知人類某種病的致病基因在X染色體上，一對正常的夫婦生了一個患病的孩子，由此可知 （ ）
A.
該病孩的祖父母一定是正常的
B.
該病孩可能是女孩
C.
這對夫婦再生一個病孩的機率是1/2
D.
該病孩的母親是致病基因的攜帶者
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舉報參考答案：
舉一反三
【單選題】From the text, we learn that Baccarat and Sorrenbourg are the names of ________.
A.
towns
B.
churches
C.
museums
D.
mountains
【單選題】What does the woman imply?
A.
She didn’t clean the apartment.
B.
She’ll help the man clean his apartment.
C.
She needs to clean the lab.
【單選題】What does the man imply?
A.
His coach didn’t help him enough.
B.
He had no chance of winning.
C.
He didn’t follow his coach’s advice.
【單選題】What does the man say about the activities?
A.
They aren’t very good because they’re so different.
B.
He thinks they should do both.
C.
It doesn’t matter which one they do.
相關題目：
【單選題】From the text, we learn that Baccarat and Sorrenbourg are the names of ________.
A.
towns
B.
churches
C.
museums
D.
mountains
【單選題】What does the woman imply?
A.
She didn’t clean the apartment.
B.
She’ll help the man clean his apartment.
C.
She needs to clean the lab.
【單選題】What does the man imply?
A.
His coach didn’t help him enough.
B.
He had no chance of winning.
C.
He didn’t follow his coach’s advice.
【單選題】What does the man say about the activities?
A.
They aren’t very good because they’re so different.
B.
He thinks they should do both.
C.
It doesn’t matter which one they do.
參考解析：
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