2. 外语
  3. Acoustics, (the) study of sounds, (is) one of the (oldest) of the (physically) sciences.

Acoustics, (the) study of sounds, (is) one of the (oldest) of the (physically) sciences.

admin2004-12-30  48
问题 Acoustics, (the) study of sounds, (is) one of the (oldest) of the (physically) sciences.
选项 A、the
B、is
C、oldest
D、physically
答案D
解析
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