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【单选题】
下列完全吞噬概念正确的是A.
细菌被吞噬后立即死亡
B.
细菌被吞噬两小时后死亡
C.
细菌被吞噬5-10分钟后死亡，一小时内消化
D.
细菌被吞噬后5-10小时内死亡
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举一反三
【单选题】What is not true about Yunnan?
A.
There is good food.
B.
It is cheap to go.
C.
There is beautiful natural scenery.
【单选题】–Just now I called home but nobody answered. －－Oh, sorry. I ________.A．must have fallen asleepB．
A.
13. –Just now I called home but nobody answered. --Oh, sorry. I ________. A．must have fallen asleep
B.
must fall asleep
C.
can’t been asleep
D.
must be asleep
【简答题】阅读短文，判断正误。 Hello, I’m John. I’m 13. I have a pen. It’s black. It’s in my drawer（抽屉）. Hello, I’m Helen. I’m 12. I have a key. It’s yellow. It’s on the dresser（梳妆台）. Hello, I’m David. I’m 11. I have a b...
【简答题】They would like to admire some ____ ____(自然景观) of beauty and peacefulness and that is the reason why they choose Yunnan as their destination without hesitation.
【单选题】下列属于动作电位特点之一的是
A.
阈下刺激，出现低幅度的动作电位
B.
阈上刺激，出现较低刺激幅度更大的动作电位
C.
动作电位的传导随传导距离的增加而变小
D.
具有“全或无”现象
E.
可以传导的距离与刺激强度成正比
【简答题】阅读短文，填写表格。 I'm Jessica. I'm 13. I'm a middle school student. Every day I have a lot to do. On Monday I have school assembly in the Assembly Hall. On Tuesday I play tennis with my best friend, Mary. On...
【单选题】Chen Lin is from Yunnan and Li Yang is ______ from Yunnan.
A.
too
B.
also
C.
either
D.
or
【单选题】下列属于动作电位特点之一的是
A.
阈下刺激，出现低幅度的动作电位
B.
阈上刺激，出现较低刺激幅度更大的动作电位
C.
动作电位的传导随传导距离的增加而变小
D.
具有“全或无”现象
E.
可传导的距离与刺激强度成正比
【单选题】---I decided to travel round Yunnan for a year. ---_______? You have just started a new job.
A.
Come on
B.
How come
C.
Why not
D.
What for
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