2. 外语
  3. If roundworms are removed from the soil and placed in a liquid, they thrash helplessly around.

If roundworms are removed from the soil and placed in a liquid, they thrash helplessly around.

admin2010-01-14  105
问题 If roundworms are removed from the soil and placed in a liquid, they thrash helplessly around.
选项 A、carelessly
B、tirelessly
C、powerlessly
D、heartlessly
答案C
解析
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