皮皮学，免费搜题
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【单选题】
心电图测量时的 aVR 导联属于 ( ) 。A.
单极胸导联
B.
双极加压肢体导联
C.
加压肢体导联
D.
双极加压肢体导联
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皮皮学刷刷变学霸
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【简答题】around / down / for / in / out / up The sales staff invited us for dinner, but we had to turn __________ the invitation, as our plane was leaving at 7 p.m.
【单选题】The sales staff invited us for dinner, but we had to turn __________ the invitation, as our plane was leaving at 7 p.m.
A.
on
B.
off
C.
up
D.
down
【简答题】阅读下列材料，从所给的六个选项(A、B、C、D、E、F)中，选出符合各小题要求的最佳选项。选项中有一项是多余选项。 小题1:Bree is a middle-aged lady. She doesn’t like the contemporary styles but prefers clothes of older fashion. 小题2: Margaret is an office cler...
【简答题】commercial documents
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