单选题:下列有关人体消化系统的描述中,不正确的是( )。 题目分类:初中生物 题目类型:单选题 查看权限:VIP 题目内容: 下列有关人体消化系统的描述中,不正确的是( )。 A.消化系统由消化道和消化腺两部分组成 B.小肠是消化和吸收营养物质的主要部位 C.所有的消化腺都能分泌消化液 D.所有的消化液都含有消化酶 参考答案: 答案解析:
If it __________ for his bad cold, Rick would have enjoyed If it __________ for his bad cold, Rick would have enjoyed more on his birthday 分类:初中生物 题型:单选题 查看答案
What's the starting point and destination of English course What's the starting point and destination of English course?A.Knowledge imparta 分类:初中生物 题型:单选题 查看答案
_________ aims to help students to pay attention to teachin _________ aims to help students to pay attention to teaching content efficientl 分类:初中生物 题型:单选题 查看答案
--She unwillingly took the job, didn't she?--I've no idea. --She unwillingly took the job, didn't she?--I've no idea.A.It doesn't hurt t 分类:初中生物 题型:单选题 查看答案
下列生物中属于真核生物的一组是( )。 ①颤藻②酵母菌③草履虫 ④黑藻⑤水绵⑥大肠杆菌 下列生物中属于真核生物的一组是( )。 ①颤藻②酵母菌③草履虫 ④黑藻⑤水绵⑥大肠杆菌 A.①⑤⑥ B.②③⑥ C.①②③ D.②③④⑤ 分类:初中生物 题型:单选题 查看答案