The eighteenth century witnessed the emergence of North American ports,
A
particular Boston, New York, and Philadelphia, as major commercial
B C
within the British Empire
D
答案是B,但。。我不知道怎么改,是particularly吗?
Photograph was revolutionized in 1851 by the introduction of the collodion process
A B C
for making glass negatives.
答案是A。。请指教!!
举报
第一题,你说得对。
第二题,>>>photography
其实这些题应该在这里都能找到答案,注意看一下相关的帖子。
28题这种考单词意思的有点怪啊。
photograph->photography.
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