【判断题】【消耗次数：1】
不饱和脂肪酸是原有饱和脂肪酸在去饱和酶系的作用下引入双键而形成的().
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【单选题】
脂肪酸间的比例包括两个方面:一是饱和脂肪酸、单不饱和脂肪酸、多不饱和脂肪酸之间的比例;二是n-6和n-3多不饱和脂肪酸之间的比例,以下说法不正确的是
①
饱和脂肪酸、单不饱和脂肪酸、多不饱和脂肪酸之间的比例为1:1:1
②
是n-6和n-3多不饱和脂肪酸之间的比例为(4-6):1
③
是n-3和n-6多不饱和脂肪酸之间的比例为(4-6):1
④
成年人每日膳食脂肪供能为总能量的20%~30%
随机题目
【单选题】
This is the military ____, and nobody is allowed to get in without permission. ?
①
bond ?
②
B. zone ?
③
uniform ?
④
zoo ?
【单选题】
I haven’t made any new friends yet and everybody here makes ____ of me.
①
fun
②
smile
③
laugh
④
joy
【单选题】
Im going to the supermarket this afternoon. Do you have anything ____?
①
to be buying
②
bought
③
for buying
④
to buy
【单选题】
Dont forget ____ the window before leaving the room.
①
to have closed
②
to close
③
having closed
④
closing
【单选题】
Having plenty of time, ____.
①
we needn’t to have hurried
②
there was no need for us to hurry
③
we didn’t need to hurry
④
hurrying was not necessary
【单选题】
Today, however, some new skyscrapers ____ up from the ground in long, wide, and curves.
①
arise
②
raise
③
rouse
④
rise
【单选题】
In order to ____ your goals, you must work hard.
①
make
②
achieve
③
require
④
develop
【单选题】
Waiter: ___Customer: No, thank you. I have already known what to order.
①
Do you like this kind of dishes?
②
You are welcome to our restaurant. Take seat, please.
③
Would you like to see a menu?
④
Everybody! Order, please!
【单选题】
When he came back after an absence of 20 years, he found his hometown completely ____. ?
①
changing ?
②
to be changed ?
③
to change ?
④
changed ?
【单选题】
We have studied English for only one year, ____ we can perform English short play already.?
①
for ?
②
and ?
③
yet ?
④
or?