Question

下列具有同源染色體的細(xì)胞是

A．肝細(xì)胞	B．卵細(xì)胞
C．次級(jí)精母細(xì)胞	D．細(xì)菌

用所給詞組的適當(dāng)形式填空。（5分）

be able to     hear of     keep…down    fall in love     pick up

【小題1】Have you ever __________ __________ Donald Duck?
【小題2】She’s doing her homework. Would you mind _________ your voice_________?
【小題3】We often see the boy __________ __________ the litter in the school yard.
【小題4】He _________ __________ __________ drive a car when he was 18.
【小題5】Last summer Lisa went to Guilin. She __________ __________ __________ with it.

Answer 1

A
【小題1】heard of  
【小題1】keeping down  
【小題1】pick up     
【小題1】 was able to  
【小題1】fell in love解析:
略略