【判断题】【消耗次数：1】
炔烃叁键相对于烯烃双键是难于被酸性高锰酸钾氧化的。若双键和叁键同时存在，则双键首先被氧化。
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【判断题】
烯炔（同时含有三键和双键的分子）的命名： （1）选择含有三键和双键的最长碳链为主链。 （2）主链的编号遵循链中双、三键位次最低系列原则。 （3）通常使双键具有最小的位次。
①
正确
②
错误
随机题目
【单选题】
—When ____ the show ____?—It begins at 7 o’clock this evening.
①
does--begin
②
will--begin
③
is--beginning
④
is--going to begin
【单选题】
5. ____ come to this university, you need to get very good grades at the end of secondary school.
①
So you can
②
For you
③
In order to
④
To be able
【单选题】
Finding it difficult to ____ to the climate in the city, he decided to move to the North. ?
①
adopt ?
②
adapt ?
③
fit ?
④
suit?
【单选题】
If you want to see the chairman of the department, you’d better make an ____ with him first.
①
admission
②
agreement
③
appointment
④
argument
【单选题】
I noticed her ____ a pen from the ground.
①
to pick out
②
to pick up
③
pick out
④
pick up
【单选题】
The decision to quit school at that young age is, ____, the most stupid thing I have ever done.
①
by comparison
②
in retrospect
③
at first sight
④
at times
【单选题】
Hed had more than enough practice to become a(n ) ____.
①
special
②
skill
③
profession
④
expert
【单选题】
It was clear that much of what he said was far ____ the truth.
①
for
②
from
③
at
④
to
【单选题】
She is studying medical science now, but she ____ a lawyer.
①
would be
②
used to be
③
formerly were
④
had been