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【单选题】
P波的方向正确的是A.
除aVR导联倒置外，其余导联均应直立
B.
I、Ⅱ、aVF、V4～V6导联直立，aVR导联倒置
C.
Ⅱ、Ⅲ、aVF导联倒置，aVR导联直立
D.
V1导联正负双向，其余导联均应直立
E.
I、aVL、V1～V3导联倒置，aVR导联直立
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举一反三
【单选题】Many personnel managers say it is getting harder and harder to __________ honest applicants from the growing number of dishonest ones．
A.
distinguish
B.
disguise
C.
dissolve
D.
discount
【单选题】_____you work at English, _____ progress you will make in it. [ ]
A.
The harder; a greater
B.
Harder; the greater
C.
The harder; greater
D.
The harder; the greater
【单选题】The little boy is crying . [ ]
A.
hard and hard
B.
harder and harder
C.
hardest and hardest
D.
harder and hardest
【单选题】you study, grades you will get .
A.
Harder; better
B.
The harder; the better
C.
hard; good
D.
The harder; better
【单选题】Many personnel managers say it is getting harder and harder to ________ honest applicants from the growing number of dishonest ones. [ ]
A.
distinguish
B.
disguise
C.
dismiss
D.
discount
【单选题】A good boss is the one who can ___ his employees to work harder and harder.
A.
motivate
B.
move
C.
manage
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