一道语法题SAT的 改错Researchers are experimenting with various techn
一道语法题
SAT的 改错
Researchers are experimenting with various techniques for preventing the accumulation in water of high levels of nitrogen, which can kill plants and animals.
为什么这句话是对的, which 指代的是nitrogen啊.怎么能说nitrogen kill plants and animals
SAT的 改错
Researchers are experimenting with various techniques for preventing the accumulation in water of high levels of nitrogen, which can kill plants and animals.
为什么这句话是对的, which 指代的是nitrogen啊.怎么能说nitrogen kill plants and animals
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你能帮帮他们吗