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【单选题】
水质监测采样时，必须在现场进行固定处理的项目是( )。A.
DO
B.
BOD
C.
COD
D.
氨氮
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反馈参考答案：
举一反三
【简答题】If your friends have been there, you can talk to them.
【简答题】Have you ever posted letters to your friends or parents? If so, you must have put stamps on the letters before you sent them. But, how did people receive letters before stamps were invented, and who c...
【单选题】If your friends have some unhealty habits, what will you do ?
A.
To be with them .
B.
To surpport them firmly.
C.
Try not to geet involved in them.
D.
To take them as examples.
【简答题】If your friends have been there,you can talk to them.
【单选题】If you don’t have enough money, I think you should _____ some _____ your friends.
A.
borrow; for
B.
borrow; from
C.
lend; from
D.
lend; to
【单选题】If you want to find some information about a foreign country, you can ask your friends have been to that country.
A.
whom
B.
which
C.
who
D.
whose
【简答题】第一部有完整体系的国际法著作是《战争与和平法》，其作者是：（ ）
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