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【多选题】
微生物固氮需要?A.
N2，ATP，［H］和递体
B.
NH3，ATP，［H］和递体
C.
Mg离子，固氮酶，严格厌氧环境
D.
Ca离子，固氮酶，严格好氧环境
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反馈参考答案：
举一反三
【单选题】—Could you tell us how long ________ ? —About three days.
A.
does the sports meeting last
B.
the sports meeting last
C.
will the sports meeting last
D.
the sports meeting will last
【单选题】Because of the rain, the headmaster suggested that the sports meeting ______ until next week.
A.
should put off
B.
would be put off
C.
would put off
D.
be put off
【单选题】The sports meeting next month.
A.
will hold
B.
is going to hold
C.
will be held
D.
will be hold
【简答题】The president made a ________ speech at the opening ceremony of the sports meeting, which encouraged the sportsmen greatly. A) vigorous B) tedious C) flat D) harsh
【单选题】----Could you tell us how long ? ---- About three days.
A.
does the sports meeting last
B.
the sports meeting will last
C.
the sports meeting last
D.
will the sports meeting last
【单选题】The boys by the coach now will take part in the sports meeting of the school next month．
A.
chosen
B.
being chosen
C.
choosing
D.
to be chosen
相关题目：
【单选题】The sports meeting next month.
A.
will hold
B.
is going to hold
C.
will be held
D.
will be hold
参考解析：
知识点：
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