首页
登录
职称英语
By the time I finished high school, my interest in animals had grown, and en
By the time I finished high school, my interest in animals had grown, and en
游客
2024-01-15
8
管理
问题
By the time I finished high school, my interest in animals had grown, and enrolled at a university to study biology. I learned soon enough that studying animals (56) this level was not in the animals best (57) . I remember one midterm exam in (58) each student was handed a large, fleshly-killed frog and (59) to dissect (解剖) and mark a set of body parts. I looked at the (60) flog in front of me and was saddened that her life was (61) away for such a slight (62) .
A year later, in the same lab (63) I dissected the flog, I performed a small act of animal (64) . We were (65) on fruit flies, and it was time to record the distribution of characteristics in their next generation. Flies were (66) in small plastic bottles. Counting the number of flies with white or red eyes required first exposing them to ether (乙醚) (67) . they could not move. The flies were then spread onto a piece of white paper (68) and counted. When the data collection was (69) , the flies had no further use, and our instructions were to (70) them into a small glass dish of oil at the center of each desk, which was to be their final resting (71) .
Once may little pile of flies had been counted, I pushed them off the edge of the paper. As we recorded our data, I kept one eye (72) them. Within minutes the pile was humming (嗡嗡叫) as tiny legs and wings beat their way out of the ether fog. I was extremely excited as they (73) flight. That was my first (74) in refusing to conduct scientific research that treated nonhuman life in a(n) (75) way. [br]
选项
A、experimenting
B、strengthening
C、stimulation
D、substituting
答案
A
解析
experiment on对……做实验。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3364931.html
相关试题推荐
SpeakerA:Whyweren’tyouatschoolyesterday?SpeakerB:【D1】______SpeakerA:
SpeakerA:Whyweren’tyouatschoolyesterday?SpeakerB:【D1】______SpeakerA:
Thechildrenwillhaveto()theirplay-timehourswhenschoolopens.A、cutinB、c
Animalsseemtohavethesensetoeatwhentheyarehungryandtheydonote
Animalsseemtohavethesensetoeatwhentheyarehungryandtheydonote
Animalsseemtohavethesensetoeatwhentheyarehungryandtheydonote
Thechildrenwillhaveto()theirplay-timehourswhenschoolopens.A、cutinB、c
Animalsseemtohavethesensetoeatwhentheyarehungryandtheydonote
Animalsseemtohavethesensetoeatwhentheyarehungryandtheydonote
Animalsseemtohavethesensetoeatwhentheyarehungryandtheydonote
随机试题
Whatisyourfavoritecolor?Doyoulikeyellow,orange,andred?Ifyoudo
NewYearTraditions"HappyNewYear!",thatgreetingwil
焦炉煤气脱硫脱氰方法中适用于煤气含硫量较低,要求净化程度高或煤气处理量较小的情况
不属于胃黏膜损伤因子的是A、皮质激素 B、前列腺素E C、胃酸和胃蛋白酶
简述多媒体教学的优势。
2001年至今,中国债券市场主要以( )为主。A.柜台交易市场 B.交易所市
以下关于普通投资者和专业投资者之间相互转化的说法,错误的是( )A.第二类专业
患儿,男,4岁。高热、咳嗽、咽痛,查体见咽红、扁桃体Ⅱ度肿大,血常规见白细胞计数
下列各项中,会引起资本流动的有()。A:资本相对过剩 B:国际金融资源措施的普
开放性气胸的急救处理首选( )。A.剖胸探查 B.清创术 C.迅速封闭胸壁
最新回复
(
0
)