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【单选题】
You might have avoided the collision if you had not changed the courseA.
You might have avoided the collision if you had altered the course
B.
You might have avoided the collision if you had reduced the course
C.
You changed your course and the collision happend
D.
You changed your course and the collision had been avoided
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举一反三
【单选题】患者,男,50岁。患胃溃疡多年。饱餐后2小时突发上腹部剧痛,X线检查显示腹腔内有气体。诊断为胃溃疡合并胃穿孔。最有可能发生胃溃疡的部位通常在( )
A.
胃底
B.
胃大弯
C.
贲门部
D.
幽门窦近胃小弯侧
【单选题】She is the first speaker ______ gave the speech at the meeting.
A.
who
B.
whom
C.
that
D.
whose
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