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【单选题】
了解疾病遗传度最有效的办法是( )A.
家系法研究
B.
双生子研究
C.
寄养子研究
D.
遗传方式研究
E.
连锁分析
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反馈参考答案：
举一反三
【简答题】课文语法选择。 I was not feeling very well so the doctor checked my heart and said I needed more exercise.I have never been very 1 , and I do not like sports.I have always wanted a pet, 2 my parents gave ...
【简答题】Listen to the short passage carefully and then fill in the blanks with what you have heard. Postcards always (1) my holidays. Last summer, I went to Italy. I visited (2) and sat in (3) . A friendly wa...
【简答题】A cruel lion lived in the forest. Every day, he killed and ate a lot of animals. The other animals were afraid the lion would kill them all. The animals told the lion, “ Let’s make a deal. If you prom...
【单选题】听力原文：W: Surely, Mary comes in here every day at 3 o'clock. M: I thought she would come at 3:30. She always has too much to do. At what time does Mary always come?
A.
At half past three.
B.
At four o'clock.
C.
At two o'clock.
D.
At three o'clock.
【单选题】金属扣合工艺具有_____和修理质量可靠等特点。I.常温下修理对零件无影响; II.结合强度高; III .适用材料范围广泛; IV.工艺简单,操作灵活、快速,生产率高; V.设备简单,成本低,经济效益好
A.
Ⅱ+Ⅲ+Ⅳ+Ⅴ
B.
Ⅲ+Ⅳ+Ⅴ
C.
Ⅱ+Ⅲ+Ⅴ
D.
Ⅰ+Ⅳ+Ⅴ
【单选题】Goodbye!_about you every day until you come back.
A.
I think
B.
I'll have thought
C.
I'll be thinking
D.
I thought
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