29. The modern violin, the smallest and versatile instrument in the violin family, is
A B
tuned in fifths and produces tones ranging over four and a half octaves.
C D
这里ranging 是什么意思?后面的是什么意思?the smallest and versatile 怎么不对啊,两个不一定最高级啊,一个最高级一个一般级的形容词也可以把?
36. The oldest public edifice in Washington D.C., the White House was originally
A B
constructed in the 1790's, also has been rebuilt or extensively remodeled
C
three times since.
D
three times since.?有这个表达的?since怎么放在后面是可以的?这个题目答案是C//////知道also应该改为and更好,但是这里three times since. 真的有点迷糊了
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