【单选题】【消耗次数：1】
蒸制过程杀菌是由于菌体( )而失去了生理活性。
①
蛋白质受热变性
②
缺氧
③
高渗透压
④
脱水
参考答案：
复制
纠错
相关题目
【单选题】
由于蛋白质的互补作用，玉米蛋白质的生理价值是60%，小麦蛋白质的生理价值是67%，黄豆蛋白质的生理价值是65%，而它们综合在一起的生理价值是( )。
①
73%
②
74%
③
80%
④
89%
【单选题】
不属于蛋白质变性特点的是
①
空间构象被改变
②
理化性质的改变
③
生物活性的丧失
④
从原来无序的松散的伸展状结构变为有序的卷曲的紧密结构
⑤
疏水基团大量暴露在分子表面,很容易因分子间相互碰撞而沉淀
随机题目
【单选题】
The electric fan does not work because of the ____ of service.
①
pause
②
break
③
interruption
④
breakdown
【单选题】
It is ____ to fly an airplane at three thousand miles an hour.
①
possible
②
likely
③
maybe
④
probable
【单选题】
The eldest child is thoroughly ____ because they
always give him whatever he wants.
①
wasted
②
spoiled
③
destroyed
④
uneducated
【单选题】
When she saw the clouds, she went back to the house to
____ her umbrella.
①
bring
②
fetch
③
take
④
carry
【单选题】
The new cut in interest rate ____ promote domestic investment.
①
means to
②
directs toward
③
is meant to
④
leads to
【单选题】
—__________fine day it is today!—Yes, the sunshine is__________beautiful that Id like to go swimming in the sea.
①
How, such
②
What a, very
③
How, so
④
What a, so
【单选题】
By cutting down trees we ____ the natural home of birds and animals.
①
harm
②
hurt
③
injure
④
damage
【单选题】
Nowadays, many people suffer from _________ depression under the pressure of working.
①
acute
②
sharp
③
quick
④
cute
【单选题】
Something must have happened on their way. Or they_____
by now.
①
should have arrived
②
should arrive
③
would have arrived
④
would arrive
【单选题】
The treasury issued an order stating that ____ land purchased from the government had to be paid for in gold and silver.
①
henceforth
②
moreover
③
whereby
④
however