并指()是由_______引起的一种遗传病。该家庭中的致病基因主要来自Ⅰ2,由于这种变化发生在______细胞,从而导致每一代都有患者出现
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Have you seen Tom recently 英译汉Have you seen Tom recently 英译汉
I found the picture was upside down.()
Don’t go there alone in such late hours Don’t worry. I________[A] don’t[B] won’t[CDon’t go there alone in such late hours Don’t worry. I________ [A] don’t [B] won’t [C] didn’t [D] haven’t
____me, do you know where the youth hostel is