题目内容

【C9】

A. involved in
B. shocked by
C. exhausted by
D. combined in

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【C19】

A. dotting
B. carrying
C. inserting
D. rising

【C13】

A. stiff
B. personal
C. crowded
D. comfortable

______ are changes on charts due to changes in hydrography，topography，construction，removal

A. revised edition
B. new edition
C. small corrections
D. source data

【C8】

A. before
B. by
C. for
D. over