题目内容

A.Tom looks good today.B.She doesn't like Tom.C.She wants a white shirt.D.Tom should ch

A. Tom looks good today.
B. She doesn't like Tom.
C. She wants a white shirt.
D. Tom should change a blue shirt.

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A. substantial
B. extensive
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超声心动图SAM征指的是

A. 二尖瓣前叶收缩期前向运动
B. 三尖瓣后叶舒张期向后运动
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A.onB.atC.inD.above

A. on
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C. in
D. above

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