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【单选题】
人体动脉血压在80~180mmHg范围波动时,肾血流量仍保持相对恒定,是由于( )A.
神经调节
B.
体液调节
C.
自身调节
D.
神经和体液共同调节
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举一反三
【单选题】----______ you ever ________ Tom before ? ---- No, I _____ him just two minutes ago.
A.
Did, know ; met
B.
Have, known ; have met
C.
Have, known; met
D.
Did, know; had met
【单选题】--I have met Tom several times before. --________.
A.
So did I
B.
I did, either
C.
So have I
D.
Neither have I
【单选题】I met Tom yesterday. I_____ him since we left school. [ ]
A.
have not seen
B.
saw
C.
didn't see
D.
hadn't seen
【单选题】— You have never met a famous film star, ________? — Yes, I have. I met Maggie Zhang last year. [ ]
A.
did you
B.
didn't you
C.
haven't you
D.
have you
【简答题】’--- I have met Tom several times before.--- ___A. So did I B. I did,either C. So have I D. Neither have I
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