皮皮学，免费搜题
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【单选题】
下列不属于蛋白质工程成果的是( )
A.
改造酶的结构,提高酶的热稳定性
B.
生产出鼠-人嵌合抗体
C.
将t­PA分子中的天冬酰胺替换为谷氨酰胺
D.
将人的胰岛基因整合到大肠杆菌体内生产胰岛素
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皮皮学刷刷变学霸
举一反三
【单选题】. ______the zoologists tried to prove was that the photo of the South China Tiger had been staged or technologically dealt with.
A.
That
B.
Why
C.
Whether
D.
What
查看完整题目与答案
【单选题】亚硝酸盐食物中毒的机制是
A.
巯基酶失活
B.
溶血作用
C.
卟啉代谢障碍
D.
胆碱酯酶活性被抑制
E.
亚铁血红蛋白氧化成高铁血红蛋白
查看完整题目与答案
【单选题】Going to South Africa for the World Cup makes me ____,for I am a football fan. [     ]
A.
relaxed
B.
relaxing
C.
excited
D.
exciting
查看完整题目与答案
【单选题】When they got to the South Pole, they found the Norwegians had ____ them in the race to be the first ever to reach it.
A.
hit
B.
fought
C.
won
D.
defeated
查看完整题目与答案
【单选题】Tommy had had a three-mile drive north _____ he could turn and head back south.
A.
while
B.
as
C.
before
D.
after
查看完整题目与答案
【单选题】_______ snacks and drinks, but they brought cards for entertainment when they had a picnic in South Bank Parklands.
A.
Not only they did bring
B.
Not only did they bring
C.
Not only brought they
D.
Not only they brought
查看完整题目与答案
【多选题】关于FM信号解调描述正确的是
A.
宽带FM采用非相干解调
B.
窄带FM只能采用相干解调
C.
窄带FM可采用相干解调，也可采用非相干解调
D.
宽带FM可采用相干解调
查看完整题目与答案
【判断题】由于风冷却系统对环境与气候的适应性强,暖机时间短,维护简单,因此风冷却系统得到广泛的应用。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】建筑模数不包括
A.
基本模数
B.
模数数列
C.
分模数
D.
扩大模数
查看完整题目与答案
【多选题】环境保护税法中所称的应税污染物是指（ ）。
A.
大气污染物
B.
水污染物
C.
固体废物
D.
噪声
查看完整题目与答案
相关题目：
【单选题】. ______the zoologists tried to prove was that the photo of the South China Tiger had been staged or technologically dealt with.
A.
That
B.
Why
C.
Whether
D.
What
查看完整题目与答案
【单选题】亚硝酸盐食物中毒的机制是
A.
巯基酶失活
B.
溶血作用
C.
卟啉代谢障碍
D.
胆碱酯酶活性被抑制
E.
亚铁血红蛋白氧化成高铁血红蛋白
查看完整题目与答案
【单选题】Going to South Africa for the World Cup makes me ____,for I am a football fan. [     ]
A.
relaxed
B.
relaxing
C.
excited
D.
exciting
查看完整题目与答案
【单选题】When they got to the South Pole, they found the Norwegians had ____ them in the race to be the first ever to reach it.
A.
hit
B.
fought
C.
won
D.
defeated
查看完整题目与答案
【单选题】Tommy had had a three-mile drive north _____ he could turn and head back south.
A.
while
B.
as
C.
before
D.
after
查看完整题目与答案
【单选题】_______ snacks and drinks, but they brought cards for entertainment when they had a picnic in South Bank Parklands.
A.
Not only they did bring
B.
Not only did they bring
C.
Not only brought they
D.
Not only they brought
查看完整题目与答案
【多选题】关于FM信号解调描述正确的是
A.
宽带FM采用非相干解调
B.
窄带FM只能采用相干解调
C.
窄带FM可采用相干解调，也可采用非相干解调
D.
宽带FM可采用相干解调
查看完整题目与答案
【判断题】由于风冷却系统对环境与气候的适应性强,暖机时间短,维护简单,因此风冷却系统得到广泛的应用。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】建筑模数不包括
A.
基本模数
B.
模数数列
C.
分模数
D.
扩大模数
查看完整题目与答案
【多选题】环境保护税法中所称的应税污染物是指（ ）。
A.
大气污染物
B.
水污染物
C.
固体废物
D.
噪声
查看完整题目与答案