关于Chemicalsalsostayint的百科

•  Chemicalsalsostayinthegroundandundergroundwaterforalon...

• 问题详情： Chemicalsalsostayinthegroundandundergroundwaterforalongtime,______affectscropsand,________,animalsandhumans.  A.this;however      B.that;therefore     C.which;therefore       D.which;so【回答】C知识点：定语从句题型：选择题...
• 2019-12-0630457