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【单选题】
PaCO 2 低于正常表明可能有A.
代谢性碱中毒
B.
呼吸性酸中毒
C.
呼吸性碱中毒
D.
低钾血症
E.
低钠血症
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举一反三
【单选题】~ You will hear five short pieces, ~ For each piece decide what the speaker is, ~ Write one letter (A-H) next to the number of the piece.~ You will hear the five pieces twice, 13__________ 14_________...
A.
to deal with the systems administration
B.
an assistant
C.
a group accountant
D.
a host
E.
a worker
F.
an administrator
G.
a teacher
H.
a doctor 13___________
【单选题】What is the size of the piece of Telstar Tina expected to strike the earth?
A.
Several ounces.
B.
Large enough to kill the dinosaurs.
C.
Large as a house.
D.
More than one kilogram.
【单选题】下列物质中，酸性由强到弱错误的是
A.
HClO 4 H 2 SO 4 H 3 PO 4 HSiO 4
B.
HClO 4 HClO 3 HClO 2 HClO
C.
H 2 SO 4 H 2 SO 3 HNO 3 HNO 2
D.
HClO 4 H 2 SO 4 H 2 SO 3 H 2 CO 3
【单选题】HClO, HClO3 , HClO4 酸性大小排列顺序是:
A.
HClO > HClO3 > HClO4
B.
HClO > HClO4 > HClO3
C.
HClO4 > HClO > HClO3
D.
HClO4 >HClO3 >HClO
【单选题】What are they doing?
A.
They are listening to a piece of music.
B.
They are writing a book about the moon.
C.
They are studying the life of Beethoven.
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