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【简答题】
写出下列配合物的化学式 6．写出下列配合物的化学式
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皮皮学刷刷变学霸
举一反三
【单选题】—Mr. Li, I found a watch on the playground. —You should try to find out _______. [ ]
A.
whose is the watch
B.
who is the owner of the watch
C.
whom does the watch belong to
【单选题】–Mr Li, I found a watch on the playground. -You should try to find out ______.
A.
whose is the watch
B.
who is the owner of the watch
C.
whom does the watch belong to
D.
who the owner of the watch is
【单选题】费德勒模型中,用三个指标来界定下属与情境。( )
A.
领导成员之间的关系，任务结构化程度，职位权力；
B.
领导能力与，下属能力，情境复杂性程度；
C.
组织，制度，下属；
【单选题】--- Look! It ____ be Jack on the playground. ---It ____ be him. Because I saw him enter the school library just now.
A.
may; mustn’t
B.
must; can’t
C.
can; can’t
【单选题】—Where’s Li Hua? —Look! He ____ tennis on the playground.
A.
plays
B.
played
C.
playing
D.
is playing
【简答题】.在考古工作中,可以从古生物遗骸中 的含量推算古生物到现在的时间 。设 是古生物遗骸中 和 存量之比, 是空气中 和 的存量之比。试证明: ,式中 为 的半衰期。(9分)
【单选题】选出句中的宾语补足语: Did you see Li Ming playing football on the playground just now ?
A.
Li Ming
B.
playing football
C.
on the playground
D.
just now
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