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【简答题】
观察下图回答问题： （1）图中A是 ，它主要由 和 组成。正常人的体细胞中的染色体有两类，与性别决定无是 ，与性别决定有是 。 （2）图中B是 ，上面有特定的遗传效应的片段，叫做 。
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皮皮学刷刷变学霸
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【简答题】请模仿例句连词成句。 Ejemplo: Mi madre/hacer/la comida. Mi madre está haciendo la comida. 1. Mi padre/preparar/el café.
【单选题】-Which of the electronic dictionaries do you like most? -________.They are both expensive and of little use. [ ]
A.
None
B.
Either
C.
Neither
D.
Any
【简答题】选词填空。 complete, pronounce, produce, impress, lose, divide, use, terrify, design, waste 1. The little girl _____ _____ by the dog. 2. Most foreigners _____ _____ by the hospitality of the Chines...
【简答题】Mi padre trabaja ________ IBM.
【简答题】Mi padre está enfermo(生病了). Voy a _______(ver) esta tarde.
【简答题】When I was a litt1e girl , my brothers and I collected stamps for many years. My mother didn't use to work during the week , but she worked in the post office near our house on Saturdays , and she use...
【单选题】-¿______? -Mi padre come pollo y mi madre come huevos.
A.
Qué comen tus padres
B.
Qué comen tús padre
C.
Qué come tu padre
D.
Qué come tu padres
【单选题】Mi padre lavasu ropa. 等于
A.
Mi padre lava la ropa de él .
B.
Mi padre lava la ropa suya .
C.
--
D.
--
【单选题】—Which of those electronic dictionaries do you like most? — _____. They are both expensive and of little use. [ ]
A.
Both
B.
None
C.
Neither
D.
All
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