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【判断题】
EDTA配位滴定主要应用于无机物的定量分析。A.
正确
B.
错误
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参考解析：
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【单选题】We all know that humans are damaging the environment，but what can we do about it?Some people are trying to do their bit to be more environmentally friendly. Local councils in Britain encourage certain...
A.
save energy consumed in daily life
B.
reduce the amount of rubbish dumped
C.
create a new way of green living
D.
decrease the amount of carbon produced
【简答题】工艺过程划分为不同层次的单元,它们依次是()、()、()、()和()。
【简答题】阅读理解。 BUS TIME TABLE Bus 1 Bus 2 Bus 3 Bus 4 Bus 5 Supermarket Internet bars Library Clothes factory Computer city Middle school Children's park Hotel 5:50 6:08 6:25 6:40 7:00 7:15 7:30 7:45 6:05 6:23...
【单选题】一对夫妇表现型正常,他们的双亲也都正常,但双方都有一个白化病的弟弟,他们婚后所生的孩子患白化病的概率是多少?(已知白化病为AR遗传)
A.
1/2
B.
1/4
C.
3/4
D.
1/9
E.
3/16
【单选题】Since you are free now, why not _____? [ ]
A.
doing some washing
B.
to do washing
C.
to do some washing
D.
do some washing
【单选题】一对夫妇表现型正常,他们的双亲也都正常,但双方都有一个白化病的弟弟,他们婚后所生的孩子患白化病的概率是多少?(已知白化病为AR遗传)
A.
1/4
B.
3/4
C.
1/3
D.
1/9
E.
9/16
【单选题】Her home is far, so she usually _____ home. [ ]
A.
takes a bus
B.
take a bus
C.
by bus
D.
by a bus
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