题型:填空题 根据文章内容完成框内短文。 Our town has a big zoo with a lot of animals in it. There are two old lions. They eat lots of meat every day. There are also two big elephants and a little one. They are very kind. They eat much grass every day. There are a lot of' monkeys in the zoo, too. Children like them and they like children too. They like children because they sometimes give them bread and bananas. They like bananas very much. In our zoo there are three black bears and four white ones. They stand on their back legs, hold up their arms and play with each other like small children .They love candy very much. There are __1__ old lions, __2__ elephants, __3__ bears, and __4__ monkeys in the zoo .The __5__ like meat. The __6__ eat much grass and the monkeys like __7__ very much. The __8__ like candy, and they can hold up their arms and ask for __9__ to eat. The __10__ is a lot of fun. 查看答案
题型:多项选择题 鼓室肌的生理功能包括()。A.肌反射对声刺激的保护作用,低频较高频为优B.耳内肌反射有潜伏期,强刺激时较弱刺激时短C.耳内肌收缩时鼓膜紧张度增加,各听骨之间连接更紧,听骨链劲度增大,使中耳的传声效能减弱D.声音引起耳内肌的反射中,镫骨肌的收缩起主要作用E.但因这种肌反射有一定潜伏期,对突发性爆炸声的保护作用不大 查看答案