题目

第二节将下列句子中汉语部分译成英语,注意使用适当的形。【1】The_________is on the eighth floor of the building．(会议室)【2】The girl is very outgoing．We can often find the________on her face．(甜甜的微笑)【3】We should try to use less_____to keep our environment green．(塑料袋)【4】I like taking a walk in the bamboo forest because the air there is clean and fresh．（__________）【5】Every one of us should be able to sing the national song （___________）将基因型为AaBbCc和AABbCc的向日葵杂交，按基因自由组合定律，后代中基因型为AABBCC的个体比例应为 A．1/8              B．1/16             C．1/32 D．1/64