【简答题】Below is a summary of some of the main points of the passage. Read the summary and then select the best word or phrase from the box below, according to the passage. You should decide on the best choic...
【单选题】Dr Martin will first give us a summary of the situation and then discuss it ________. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
at intervals
B.
at length
C.
at issue
D.
at rand om prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>