【判断题】【消耗次数：1】
植物细胞中淀粉合成时需ADPG，纤维素合成时需GDPG和UDPG，动物细胞中糖元合成时需UDPG().
①
正确
②
错误
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【判断题】
生物质可以通过生物转化的方法生产乙醇，淀粉质原料、糖质原料和纤维素原料均可生产乙醇。糖质原料比淀粉质原料简单而直接；淀粉和纤维素制取乙醇需要水解糖化加工过程；纤维素水解比淀粉难得多。
①
正确
②
错误
随机题目
【单选题】
-- How long ______ you ______ the library book?-- For three days.
①
have; borrowed
②
have; kept
③
borrow
④
were; kept
【单选题】
I ____ up early this morning, so I stayed in bed until 8 o’clock a.m. .
①
needn’t have got
②
didn’t need to get
③
shouldn’t have got
④
can’t have got
【单选题】
Only in this way ____ out of the plan.
①
you can talk him
②
him can you talk
③
him you can talk
④
can you talk him
【单选题】
People at the party worried about him, because no one was aware ______ he had gone.
①
of where
②
of the place where
③
where
④
the place
【单选题】
If you drink too much, your health will get even ____.
①
bad
②
poor
③
worse
④
not well
【单选题】
I haven’t seen her for years, but I could still ____ her voice on the phone.
①
recognize
②
realize
③
hear
④
know
【单选题】
As I knew him better, I discovered that my____ had been right.
①
enjoyment
②
improvement
③
impression
④
environment
【单选题】
His explanation is not at all clear. I find it ____.
①
essential
②
confusing
③
awful
④
puzzled
【单选题】
Things never went _____ as we had expected
①
so smoothly
②
smooth
③
so smooth
④
smoothly