Section A
Directions: In this section, there are 10 incomplete sentences. You are required to complete each one by deciding on the most appropriate word or words from the 4 choices marked A , B, C, and D.
We couldn't have passed the final examination ______ your help.
A.but for
B.without
C.if it had not been for
D.All of the above.
第2题
关于心脏,以下说法错误的是
A.心脏位于胸腔的中纵隔内
B.心底朝向右后上方
C.冠状沟是左、右心房的表面分界标志
D.左心房有四个入口
E.右心房有两个入口
第4题
关于心脏,以下说法中错误的是
A.心脏位于胸腔的中纵隔内
B.心底朝向右后上方
C.冠状沟是左、右心房的表面分界标志
D.左心房有四个人口
E.右心房有两个入口
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