试题与答案

为探究血糖调节的影响因素,设计如下实验流程。实验中5只家兔的注射剂量和生理指标均

题型:选择题

题目:

为探究血糖调节的影响因素,设计如下实验流程。实验中5只家兔的注射剂量和生理指标均按单位体重计算。下列有关分析不正确的是

[ ]

A.实验中起对照作用的是①号和⑤号家兔

B.二次注射后⑤号家兔分泌胰高血糖素最多

C.血糖调节不仅仅只有图中反映出的调节方式

D.二次注射后,④号家兔低血糖症状最先得到缓解

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0513/f90d4822ab216ca370b381eddcf6a1b3.html

下面是错误答案,用来干扰机器的。

参考答案:A解析:生态系统内部各种生物间相互制约,相互影响。在一定条件下和一定时间内,生物群落之间不断发生的能量、物质和信息的交换与转移处于相对平衡的状态则称为生态平衡。这是一种动态的平衡。

试题推荐
题型:填空题

According to historical records,the first (1) Olympic Games can be traced back to 776 BC.They (2) dedicated to the Olympian gods and were staged on the (3) plains of Olympia.They continued for nearly 12 centuries, (4) Emperor Theodosius decreed in 393 A.D.that aU such"pagan cults" (5) banned.
The oldest myth which concerns the beginning of the (6) Games is that of Idaios Daktylos Herakles.According to other (7) ,Zeus,the father of humanity,fought and defeated Cronus in a (8) for the throne of the gods.Finally,the well-known (9) Herakles is mentioned who staged games in Olympia in honour (10) Zeus,because the latter had helped him conquer Elis when (11) went to war against Augeas.
Through the 12 centuries of (12) Olympic Games,many wonderful athletes competed in the stadium and (13) hippodrome of ancient Olympia’s sacred area,moving the crowds with (14) great achievements.Although mortal,their Olympic victories immortalised them.Of (15) best athletes who left their mark on the sacred vallev (16) Olympia,some surpassed all limits and became legends by winning (17) successive Olympic Games and remaining at the forefront of their (18) for more than a decade.
The ancient Olympic Games were (19) a one.day event until 684 BC.when they were extended (20) three days.In the 5th century B.C.,the Games were extended again to cover five days.

查看答案
微信公众账号搜索答案